text
stringlengths
49
983k
#include<bits/stdc++.h> using namespace std; int main() { long long t1,t2; cin >> t1 >> t2; long long a1,a2,b1,b2; cin >> a1 >> a2 >> b1 >> b2; long long p,q; if(a1>b1) { p=t1*(a1-b1); q=t2*(a2-b2); } else { p=t1*(b1-a1); q=t2*(b2-a2); } if(p+q==0) { cout << "infinity" << endl; ...
#include <bits/stdc++.h> #define MAX (ll)(1e5 + 4) #define MOD (ll)(1e9 + 7) #define INF (ll)(1e18 + 3) #define PI (double)(3.14159265) using namespace std; using ll = long long; using ld = long double; int main () { ll t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll s = (a1 - b1) * t1, ss = (a...
#include<bits/stdc++.h> using namespace std; typedef long long int ll; int main(){ ios_base::sync_with_stdio(false); cin.tie(0);cout.tie(0); ll t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll p = (b1 - a1) * t1, q = (b2 - a2) * t2; if(p + q == 0){ cout << "infinity" << endl; ...
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) ll ans = 0; int main() { ll t1 , t2 ; cin >> t1 >> t2 ; ll a1 , a2 ; cin >> a1 >> a2 ; ll b1 , b2 ; cin >> b1 >> b2 ; if(a1<b1){ swap(a1,b1); swap(a2,b2); } if(a1*t1+a2*t2>b1*t1+b2*t2){ cout << ...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main(){ cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0); ll ta,tb,af,ab,bf,bb; cin >> ta >> tb >> af >> ab >> bf >> bb; af *= ta; bf *= ta; ab *= tb; bb *= tb; if(af + ab == bf + bb){ cout << "infinity" << '\n'; } else{ if...
#include <bits/stdc++.h> using namespace std; long t1,t2,a1,a2,b1,b2,ans=0; int main() { cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if(a1>b1) { swap(a1,b1); swap(a2,b2); } if((t1*a1)+(t2*a2)>(t1*b1)+(t2*b2)) { ans=((b1-a1)*t1)/((a1-b1)*t1+(a2-b2)*t2)*2; if(((b1-a1)*t1)%((a1-b1)*t1+(a2-b2)*t2)!=...
#include <iostream> using namespace std; int T1, T2; long long A1, A2, B1, B2; int main() { cin >> T1; cin >> T2; cin >> A1; cin >> A2; cin >> B1; cin >> B2; long long C1 = A1 - B1; long long C2 = A2 - B2; long long tx = C1 * T1; long long bx = tx + C2 * T2; if (bx == 0) { cout << "infinity"...
#include<bits/stdc++.h> using namespace std; int main(){ int64_t T1,T2,A1,A2,B1,B2; cin>>T1>>T2>>A1>>A2>>B1>>B2; int64_t A=A1-B1; int64_t B=A2-B2; if((0<A&&0<B)||(A<0&&B<0)) cout<<0<<endl; else if(A*T1+B*T2==0) cout<<"infinity"<<endl; else{ if((0<A&&0<A*T1+B*T2)||(A<0&&A*T1+B*T2<0)) cout<<0<...
#include <iostream> using namespace std; int main(){ long long T[2], A[2], B[2]; cin >> T[0] >> T[1] >> A[0] >> A[1] >> B[0] >> B[1]; for(int i = 0; i < 2; ++i){ B[i] -= A[i]; A[i] = 0; } if(T[0]*B[0]+T[1]*B[1] == 0){ puts("infinity"); return 0; } if(B[0] < 0) B[0] *= -1, B[1] *= -1; lo...
#include <bits/stdc++.h> using namespace std; int main(){ int64_t T1,T2,A1,A2,B1,B2; cin>>T1>>T2>>A1>>A2>>B1>>B2; if(T1*A1+T2*A2==T1*B1+T2*B2){ cout<<"infinity"<<endl; } else{ if(T1*A1+T2*A2<T1*B1+T2*B2){ swap(A1,B1); swap(A2,B2); } if(A1>B1){ cout<<"0"<<endl; } else...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ll T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if (A1 == B1 || T1 * A1 + T2 * A2 == T1 * B1 + T2 * B2) { cout << "infinity" << endl; return 0; } if (T1 * A1 + T2 * A2 <= T1 * B1 + T2 * B2) { swa...
#include<iostream> using namespace std; int main() { long T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if (T1*A1+T2*A2==T1*B1+T2*B2) { cout << "infinity" << endl; return 0; } long M1 = T1*A1-T1*B1, M2=T2*A2-T2*B2; if (M1+M2<0) {M1 = -M1; M2=-M2;} if (M2 > 0) cout<<(max(0L, (M2-1)/(M1+M2)-...
#include <bits/stdc++.h> using namespace std; #define int long long template<typename T> void fin(T a){ cout<<a<<endl; exit(0); } signed main(){ int t1,t2,a1,a2,b1,b2;cin>>t1>>t2>>a1>>a2>>b1>>b2; a1-=b1;a2-=b2; if(a1>0)a1*=-1,a2*=-1; int A=t1*a1+t2*a2,B=-t1*a1; if(A<0)fin(0); if(A==0)fin("infinity"); ...
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll n,m,a,b,c,d,A,B; int main(void){ cin>>n>>m>>a>>b>>c>>d; if((a-c)>0&&(b-d)>0){ cout<<0<<endl; return 0; } if((a-c)<0&&(b-d)<0){ cout<<0<<endl; return 0; } A=abs(a-c)*n; B=abs(b-d)*m; if(A==B){ cout<<"infinity"<<endl; return 0; } ...
#include <bits/stdc++.h> using namespace std; typedef unsigned long long ull; typedef long long ll; int main(){ ll t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll d1=(a1-b1)*t1, d2=(a2-b2)*t2; if(d1>0){ d1*=-1, d2*=-1; } if(d2<0) cout << 0 << endl; else if(d1+...
#include<bits/stdc++.h> using namespace std; typedef long long ll; const ll MOD=1e9+7; int main() { ll t1,t2,a1,a2,b1,b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; if(a1*t1+a2*t2==b1*t1+b2*t2) { cout<<"infinity"; return 0; } ll c1=(a1-b1)*t1,c2=(a2-b2)*t2; if(c1>=0&&c2>=0) { c...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); ll t1,t2,a1,b1,a2,b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll p=(a1-b1)*t1; ll q=(a2-b2)*t2; if(p>0) { p=-p; q=-q; } if(p+q<0) cout << 0 << endl; else if(p+q==0) co...
#include<bits/stdc++.h> using namespace std; using Lint=long long; Lint solve(Lint X,Lint Y) { if(X+Y==0) return -1; if(X<0) X=-X,Y=-Y; if(X==0) return 1; else{ if(X+Y>0) return 0; else{ Lint res=X/abs(X+Y)*2; if(X%abs(X+Y)!=0) res++; return res; ...
#include <bits/stdc++.h> using namespace std; typedef long long ll; ll ans=0,t1,t2,a,b,c,d; int main(){ scanf("%lld %lld %lld %lld %lld %lld",&t1,&t2,&a,&b,&c,&d); a-=c; b-=d; a*=t1; b*=t2; if(a+b==0) printf("infinity\n"); else if(a>0&&a+b>0) printf("0\n"); else if(a<0&&a+b<0) printf("0\n"); els...
#include <bits/stdc++.h> #define rep(i,n) for (int i = 0; i < (n); ++i) using namespace std; using ll = long long; using P = pair<int,int>; int t1, t2; ll a1, a2, b1, b2; int main() { cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if (a1 < b1) { swap(a1, b1); swap(a2, b2); } ll d = (b1 * t1 + b2 * t2) - (a1...
#include<bits/stdc++.h> using namespace std; #define int long long int t1,t2,a1,a2,b1,b2; signed main(){ cin>>t1>>t2>>a1>>a2>>b1>>b2; int t3=t1*a1,t4=t1*b1,t5=t2*a2,t6=t2*b2; if(t3>t4&&t5>t6){ printf("0"); return 0; } if(t3<t4&&t5<t6){ printf("0"); return 0; } if(t3<t4&&t3+t5<t4+t6){ printf("0"); return 0; } if(t...
#include<bits/stdc++.h> using namespace std; long long t1,t2,a1,a2,b1,b2; long long d1,d2; long long down,up; int main() { cin>>t1>>t2>>a1>>a2>>b1>>b2; d1=t1*(a1-b1); d2=t2*(a2-b2); if(d1==(-d2)) { cout<<"infinity"<<endl; return 0; } down=min(min(down,d1),d1+d2); up=max(max(up,d1),d1+d2); long long ans=0;...
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll t1,t2,a1,a2,b1,b2; ll x,y; int main(){ ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); cin>>t1>>t2>>a1>>a2>>b1>>b2; x=t1*(a1-b1); y=t2*(b2-a2); if(x<0){ x=-x;y=-y; } if(x>y){ cout<<0<<end...
#include <bits/stdc++.h> using namespace std; #define int long long template<typename T> void fin(T a){ cout<<a<<endl; exit(0); } signed main(){ int t1,t2,a1,a2,b1,b2;cin>>t1>>t2>>a1>>a2>>b1>>b2; a1-=b1;a2-=b2; if(a1>0)a1*=-1,a2*=-1; int A=t1*a1+t2*a2,B=-t1*a1; if(A<0)fin(0); if(!A)fin("infinity"); ...
#include <bits/stdc++.h> using namespace std; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); using ll = long long; ll T1,T2; cin>>T1>>T2; ll A1,A2; cin>>A1>>A2; ll B1,B2; cin>>B1>>B2; ll d1 = T1*(A1-B1); ll dd = d1 + T2*(A2-B2); if (dd == 0) { cout << "infinity" << endl; } else if ...
#include<bits/stdc++.h> using namespace std; int main() { long long t1,t2;cin>>t1>>t2; long long a1,a2;cin>>a1>>a2; long long b1,b2;cin>>b1>>b2; long long a1g=(a1-min(a1,b1))*t1; long long a2g=(a2-min(a2,b2))*t2; long long b1g=(b1-min(a1,b1))*t1; long long b2g=(b2-min(a2,b2))*t2; if(a1g==0&&a2g==0||b1g...
#include <bits/stdc++.h> using namespace std; long long t1,t2,a1,b1,a2,b2; int main() { cin>>t1>>t2>>a1>>b1>>a2>>b2; if (a1*t1+b1*t2==a2*t1+b2*t2) puts("infinity"); else { long long res=0; long long f1=t1*a1,f2=t2*b1; long long g1=t1*a2,g2=t2*b2; if (f1<g1) { swap...
#include<bits/stdc++.h> using namespace std; using ll = long long; int main() { vector<ll> t(2), a(2), b(2); cin >> t[0] >> t[1] >> a[0] >> a[1] >> b[0] >> b[1]; if(b[0] > a[0]) { swap(a[0], b[0]); swap(a[1], b[1]); } ll ad = t[0] * a[0] + t[1] * a[1]; ll bd = t[0] * b[0] + t...
#include<bits/stdc++.h> using namespace std; #define rep(i,n) for(int i=0; i<(n); i++) int t[2]; long long a[2], b[2], c,d; int main(){ scanf("%d%d%lld%lld%lld%lld", t,t+1,a,a+1,b,b+1); c = (a[0]-b[0]) * t[0]; d = c + (a[1]-b[1]) * t[1]; if(c > 0) d = -d; else c = -c; if(d == 0) puts("infinity"); else if(d < 0) ...
#include <bits/stdc++.h> typedef long long ll; using namespace std; ll T[2],A[2],B[2],N,D,ans; int main(void){ cin >> T[0] >> T[1] >> A[0] >> A[1] >> B[0] >> B[1]; if(A[0]<B[0]){ swap(A[0],B[0]); swap(A[1],B[1]); } D = (B[0]*T[0] +B[1]*T[1])-(A[0]*T[0] +A[1]*T[1]); //cout << D << en...
#include<bits/stdc++.h> using namespace std; int main(){ long long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; long long v1 = a1 - b1; long long v2 = a2 - b2; long long x1 = v1 * t1; long long x2 = v2 * t2; long long T = x1 + x2; if(T == 0) cout << "infinity" << endl; else if((x1...
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll t1,t2,a1,a2,b1,b2; int main() { scanf("%lld%lld%lld%lld%lld%lld",&t1,&t2,&a1,&a2,&b1,&b2); ll a=a1-b1,b=a2-b2; if(a<0) a*=-1,b*=-1; ll k=t1*a+t2*b; if(k==0) {printf("infinity\n");return 0;} if(k>0){printf("0\n");return 0;} ...
#include<bits/stdc++.h> using namespace std; int main(){ long long t1,t2,a1,a2,b1,b2; cin>>t1>>t2; cin>>a1>>a2; cin>>b1>>b2; long long saa=t1*a1-t1*b1; long long sab=t2*a2-t2*b2; long long sac=saa+sab; long long num=abs(saa/sac); long long num2=abs(saa%sac); if(sac==0){ cout<<"infinity"<<endl; ...
#include<bits/stdc++.h> using namespace std; typedef long long ll; int main(){ ll t1,t2; cin >> t1 >> t2; ll a1,b1,a2,b2; cin >> a1 >> a2 >> b1 >> b2; if( a1 < b1 ){ swap(a1,b1); swap(a2,b2);} ll d1 = (a1-b1)*t1; ll d2 = (a2-b2)*t2; if( d1+d2 > 0){ cout << 0 << endl;} else if( d1+d2 == 0 ){ ...
#include <iostream> using namespace std; typedef long long ll; int main() { ll t1,t2; ll a1,a2,b1,b2; cin >> t1 >> t2; cin >> a1 >> a2; cin >> b1 >> b2; if(t1*a1 < t1*b1) { swap(a1,b1); swap(a2,b2); } ll tmp1 = t1*a1-t1*b1; ll tmp2 = t1*a1+t2*a2-(t1*b1+t2*b2); if(tmp2 == 0) { ...
#include<bits/stdc++.h> #define puts(x) cout << x << "\n" using namespace std; long long t1, t2, a1, a2, b1, b2; int main() { cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; a1 = (a1 - b1) * t1; a2 = (a2 - b2) * t2; if (a1 + a2 == 0)puts("infinity"); else if (a1/abs(a1) * a2 > 0 || abs(a1) > abs(a2))puts(0); else { lo...
#include <bits/stdc++.h> #define int long long typedef long long ll; using namespace std; ll T1, T2, A1, A2, B1, B2, ans=0, tmp=0; signed main(){ cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if(A1*T1+A2*T2==B1*T1+B2*T2) { cout << "infinity" << endl; return 0; } if(A1>B1&&A2*T2+A1*T1>B2*T2+...
#include<bits/stdc++.h> using namespace std; using ll=long long; int main(){ ll T1,T2,A1,A2,B1,B2;cin>>T1>>T2>>A1>>A2>>B1>>B2; ll C=T1*A1-T1*B1,D=T2*A2-T2*B2,ans=0; if(C+D==0){ cout<<"infinity"<<endl; return 0; } if(C>0){ if(C+D<0){ ans=C/(-C-D)*2; if(C%(C+D...
#include<bits/stdc++.h> #define int long long using namespace std; constexpr int mod=1e9+7; signed main(){ int t1,t2,a1,a2,b1,b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; a1*=t1,a2*=t2,b1*=t1,b2*=t2; a2+=a1,b2+=b1; if(a2==b2){ cout<<"infinity"<<endl; return 0; } if(a2<b2){ swap(a...
#include <iostream> #include <algorithm> #include <vector> #include <queue> #include <string> #include <cmath> using ll = long long; using namespace std; int main() { long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; long d1 = t1 * (a1 - b1), d2 = t2 * (a2 - b2); if (d1 =...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main(void){ ll t[2], a[2], b[2]; cin >> t[0] >> t[1]; cin >> a[0] >> a[1]; cin >> b[0] >> b[1]; ll am = t[0]*a[0]; ll bm = t[0]*b[0]; ll ah = t[0]*a[0] + t[1]*a[1]; ll bh = t[0]*b[0] + t[1]*b[1]; if (ah == bh) {...
#include <cstdio> #include <cstring> #include <iostream> #include <algorithm> #define MAXN 200002 #define LL long long using namespace std; LL a,b,c,d,t1,t2; int main() { cin>>t1>>t2>>a>>b>>c>>d; LL A=(a-c)*t1; LL B=A+(b-d)*t2; if(B==0) { printf("infinity\n"); } else if((B>...
#include <bits/stdc++.h> using namespace std; using int64 = long long; int main() { int64 T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if(A1 < B1) { swap(A1, B1); swap(A2, B2); } int64 S = T1 * A1 + T2 * A2; int64 T = T1 * B1 + T2 * B2; if(S == T) { cout << "infinity...
#include <bits/stdc++.h> using namespace std; using ll = long long; int main(){ ll t[2], a[2], b[2]; cin >> t[0] >> t[1]; cin >> a[0] >> a[1]; cin >> b[0] >> b[1]; ll p = (b[0]-a[0])*t[0]; ll q = (b[1]-a[1])*t[1]; if(p + q == 0){ cout << "infinity\n"; } else if (abs(q) < abs(p)...
#include <bits/stdc++.h> using namespace std; int main () { long long T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; long long a1 = A1*T1, a2 = A2*T2, b1 = B1*T1, b2 = B2*T2; if (a1+a2 == b1+b2) { puts("infinity"); return 0; } if (a1 < b1) { swap(a1, b1)...
#include <bits/stdc++.h> #define rep(i,n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; int main() { ll t1, t2; ll a1, a2; ll b1, b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; a1 *= t1; a2 *= t2; b1 *= t1; b2 *= t2; a2 += a1; b2 += b1; if (a2 == b2) { puts("infinity"); return 0;...
#include <iostream> #include <utility> using namespace std; int main() { long long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; // make a1 > b1 if (a1 < b1) { swap(a1, b1); swap(a2, b2); } auto d1 = (a1 - b1) * t1; // d1 > 0 auto d2 = (a2 - b2) * t2; if (d1 + d2 == 0) { ...
#include <stdio.h> long long t[2], a[2], b[2]; long long w, x, y, z, e, f; long long ans; int main() { scanf("%lld%lld", t, t + 1); scanf("%lld%lld", a, a + 1); scanf("%lld%lld", b, b + 1); x = t[0]; y = t[1]; w = b[0] - a[0]; z = b[1] - a[1]; e = w * x + z * y; if (e == 0) { printf("infinity\n"); return 0;...
#include <iostream> #include <vector> #include <string> #include <algorithm> #define MOD 1000000007 #define INF 1 << 30 using namespace std; typedef long long ll; int Sign(ll a) { return (a > 0) - (a < 0); } int main(void) { int num, i, j; ll ans = 1; ll d1, d2, a1, a2, b1, b2, t1, t2; cin >> t1 >> t2; cin >> ...
#include <bits/stdc++.h> using namespace std; int main(void) { cin.tie(0); ios::sync_with_stdio(false); long long int t1, t2; long long int a1, a2, b1, b2; cin >> t1 >> t2; cin >> a1 >> a2; cin >> b1 >> b2; long long int d1 = (a1 - b1)*t1; long long int d2 = (a2 - b2)*t2; if(d1>0) { d1 = -1*d1; ...
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { vector<ll> t(2), a(2), b(2); cin >> t[0] >> t[1] >> a[0] >> a[1] >> b[0] >> b[1]; ll as = t[0] * a[0] + t[1] * a[1], bs = t[0] * b[0] + t[1] * b[1]; if (as == bs) { cout << "infinity" << endl; return 0; } else if (as < ...
#include <bits/stdc++.h> using namespace std; typedef long long int ll; int main() { ll t1,t2,a1,a2,b1,b2; scanf("%lld %lld",&t1,&t2); scanf("%lld %lld",&a1,&a2); scanf("%lld %lld",&b1,&b2); ll a=a1-b1,b=a2-b2; if(a<0) { a=-a,b=-b; } ll sum=a*t1+b*t2; if(sum==0) { puts("infinity"); return 0; } if(su...
#include<bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int,int> pii; const int MAXN=2e5+10,MAXM=2e6+10; const int INF=INT_MAX,MOD=1e9+7; const ll llINF=~(1ll<<63); int main() { ll t1,t2,a1,a2,b1,b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; ll ans=(a1-b1)*t1+(a2-b2)*t2; if(!ans)return puts...
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; typedef pair<int, int> P; ll t1, t2; ll a1, a2; ll b1, b2; void solve() { ll s, t; s = a1*t1 - b1*t1; t = s + a2*t2 - b2*t2; if (t == 0) cout << "infinity" << endl; else if ((s>0 && t>0) || (...
#include<bits/stdc++.h> #define rep(i,a,b) for(int i=int(a);i<int(b);++i) using namespace std; typedef long long ll; int INF = (1LL << 30) - 1; int MOD = 1e9+7; int main(){ ll T1,T2,A1,A2,B1,B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; ll p = (A1 - B1) * T1; ll q = (A2 - B2) * T2; if(p > 0){ ...
#include <bits/stdc++.h> using namespace std; #define rep(i,n) for(int i=0;i<(n);i++) using ll=long long; const ll X=1000000007; int main() { ll T1,T2,A1,A2,B1,B2,TA,TB,AA,AB,D; cin>>T1>>T2>>A1>>A2>>B1>>B2; TA=T1*A1; TB=T2*A2; AA=T1*B1; AB=T2*B2;//高橋青木の前後半で進む距離 D=TA+TB-AA-AB; if(TA+TB==AA+AB){ cout<...
#include <bits/stdc++.h> #define ll long long #define loop(a) loopi(i,a) #define loopi(i,a) for(int i=0; i<a; i++) #define pii pair<int,int> #define pll pair<ll,ll> using namespace std; const int mod=1e9+7; int main(){ ios_base::sync_with_stdio(0),cin.tie(0); ll t1,t2,a1,a2,b1,b2; cin >> t1 >> t2 >> a1 >> a2...
#include <iostream> #include <string> #define llint long long #define mod 1000000007 using namespace std; llint t1, t2; llint a1, a2, b1, b2; int main(void) { ios::sync_with_stdio(0); cin.tie(0); cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if(a1 < b1) swap(a1, b1), swap(a2, b2); llint d1 = a1-b1, d2 = a2-b2; ...
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i, N) for (int i = 0; i < (int)N; i++) const ll MOD = pow(10,9)+7; const ll LLINF = pow(2,61)-1; const int INF = pow(2,30)-1; int main() { ll T1, T2; cin >> T1 >> T2; ll A1, A2; cin >> A1 >> A2; ll B1, B2; cin >> B1 >> B2; if (A...
#include <bits/stdc++.h> using namespace std; #define int long long signed main() { int T1, T2, A1, A2, B1, B2; cin >> T1 >> T2; cin >> A1 >> A2; cin >> B1 >> B2; A1 *= T1; A2 *= T2; B1 *= T1; B2 *= T2; if(A1+A2 == B1+B2) {puts("infinity"); return 0;} if(A1+A2 < B1+B2) { swap(A1, B1); swap(A2, B2); ...
#include <iostream> using namespace std; int main() { long long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if (t1 * a1 + t2 * a2 > t1 * b1 + t2 * b2) { swap(a1, b1); swap(a2, b2); } if (t1 * a1 + t2 * a2 == t1 * b1 + t2 * b2) { cout << "infinity"; }...
#include<iostream> using namespace std; long T1,T2,A1,A2,B1,B2; int main() { cin>>T1>>T2>>A1>>A2>>B1>>B2; long X=A1*T1+A2*T2,Y=B1*T1+B2*T2; if(X==Y) { cout<<"infinity"<<endl; } else { long d,D; if(X>Y) { d=B1*T1-A1*T1; D=X-Y; } else { d=A1*T1-B1*T1; D=Y-X; } if(d<0)cout<<0<<endl; ...
#include <iostream> using namespace std; int main(void){ long long T1,T2,A1,A2,B1,B2,a,c,ans; cin>>T1>>T2>>A1>>A2>>B1>>B2; if((A1-B1)*T1+(A2-B2)*T2==0){ cout<<"infinity"<<endl; return 0; } if((A1-B1)*T1+(A2-B2)*T2<0){ c=A1;A1=B1;B1=c; c=A2;A2=B2;B2=c; } if(A1>...
#include<bits/stdc++.h> using namespace std; typedef long long ll; vector<ll> nums[100005]; int main(){ ll t1,t2,a1,a2,b1,b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; if(a1<b1){ swap(a1,b1); swap(a2,b2); } ll t=t1*(a1-b1),d=t+t2*(a2-b2); if(d>0) cout<<0<<endl; else if(d==0) cout<<"infinity"<<endl; else{ ...
#include<bits/stdc++.h> using namespace std; long long t1,t2,a1,a2,b1,b2,a,b,s,ret; int main(){ //freopen("input.txt","r",stdin); //freopen("output.txt","w",stdout); ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cin>>t1>>t2; cin>>a1>>a2; cin>>b1>>b2; a=a1-b1; b=a2-b2; if(a<0){ a=-a; b=-b; ...
#include <bits/stdc++.h> using namespace std; long long T1, T2, A1, A2, B1, B2; int main() { cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; long long SA = A1*T1 + A2*T2; long long SB = B1*T1 + B2*T2; if(SA == SB) cout << "infinity"; else if((SA > SB && A1 > B1) || (SA < SB && A1 < B1)) cout << 0; else...
#include <bits/stdc++.h> #define rep(i, n) for(int i = 0; i < (int)n; i++) using namespace std; using ll = long long; int main(){ ll t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll diff1 = (a1 - b1) * t1; ll diff2 = (a2 - b2) * t2; if(0 < diff1) { diff1 = -diff1; diff2 = -diff2;...
#include <bits/stdc++.h> using namespace std; int main() { long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; long p = t1 * (b1 - a1), q = t2 * (b2 - a2); if(p > 0 && q > 0 || p < 0 && q < 0 || abs(p) > abs(q)) { cout << 0 << endl; return 0; } p = abs(p), q = ...
#include<iostream> #include<cstdint> int64_t T1, T2, V1, V2; int main() { int64_t A1, A2, B1, B2; std::cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; V1 = A1-B1; V2 = A2-B2; if(V1 < 0) { V1 = -V1; V2 = -V2; } int64_t dm = V1*T1, d = dm + V2*T2; if(d > 0) { std::cout << "0" << std::endl; return 0; } if(d == 0) {...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int T1, T2; ll A1, A2; ll B1, B2; int main() { cin >> T1 >> T2; cin >> A1 >> A2; A1 *= T1; A2 *= T2; cin >> B1 >> B2; B1 *= T1; B2 *= T2; if (A1 + A2 == B1 + B2) { printf("infinity\n"); return 0; } if (A1 + A2 > B1 + B2) { swap(A...
#include <bits/stdc++.h> typedef long long int LL; typedef unsigned long long int ULL; using namespace std; // 插入此處 int main() { std::ios::sync_with_stdio(false); cin.tie(0); LL T1, T2; cin >> T1 >> T2; LL A1, A2, B1, B2; cin >> A1 >> A2 >> B1 >> B2; if (A1 - B1 < 0) { swap(A1, B1); ...
#include "bits/stdc++.h" using namespace std; int main() { long long T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if (T1 * A1 + T2 * A2 == T1 * B1 + T2 * B2) { cout << "infinity" << endl; return 0; } if (A1 < B1) swap(A1, B1), swap(A2, B2); if (T1 * A1 + T2 * A2 > T1 * B1 + T2 * B2) { c...
#include <bits/stdc++.h> using namespace std; typedef long long LL; int main() { // cin.tie(0); // ios::sync_with_stdio(false); cout << fixed << setprecision(12); LL T1,T2,A1,A2,B1,B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; LL D1 = A1-B1, D2 = A2-B2; if(D1 > 0){ D1 = -D1; D2 = -D2; } LL ...
#include <bits/stdc++.h> using namespace std; int main(){ int T1, T2; long long A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; long long a=T1*A1-T1*B1, b=T2*A2-T2*B2; if(a==-b){ cout << "infinity"<< endl; return 0; } long long ans=0; if((a<0 && a+b>0) || (a>0 && a+b<0)){ ans=abs...
#include <bits/stdc++.h> using namespace std; int T1, T2; long long A1, A2, B1, B2, P, Q; int main() { cin >> T1 >> T2; cin >> A1 >> A2; cin >> B1 >> B2; P = (A1 - B1) * T1; Q = (A2 - B2) * T2; if(P > 0){ P *= -1; Q *= -1; } if( P + Q < 0){ cout << 0 << endl; ...
#include <algorithm> #include <iostream> using namespace std; int main() { long long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if (a1 > b1) { swap(a1, b1); swap(a2, b2); } if (a1 == b1 || t1 * a1 + t2 * a2 == t1 * b1 + t2 * b2) { cout << "infinity" ...
#include <bits/stdc++.h> using namespace std; int main() { long long s, t; cin >> s >> t; long long a, b, c, d; cin >> a >> b >> c >> d; a *= s; c *= s; b *= t; d *= t; b += a; d += c; if (b == d) { cout << "infinity" << endl; return 0; } if ((b > d) == (a > c)) { co...
#include <bits/stdc++.h> using namespace std; long long t[2], a[2], b[2]; void solve(); int main() { cin >> t[0] >> t[1] >> a[0] >> a[1] >> b[0] >> b[1]; solve(); return 0; } void solve() { long long x = (a[0] - b[0]) * t[0], y = (b[1] - a[1]) * t[1]; if(x == y) { cout << "infinity" << end...
#include <iostream> #include <vector> using namespace std; int main() { long long A1, A2, B1, B2, T1, T2, D1, D2, D3, p, q; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; D1 = (A1 - B1) * T1; D2 = (A2 - B2) * T2; if (D1 < 0) { D1 *= -1; D2 *= -1; } if (D1 + D2 > 0) { cout << 0; } else if (D1 + D2 == 0) { cou...
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main(){ ll t1,t2,a1,a2,b1,b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; a1 *= t1; a2 *= t2; b1 *= t1; b2 *= t2; if((a1 + a2) < (b1 + b2)){ swap(a1,b1); swap(a2,b2); } ll c1,c2; c1 = a1 - b1; c2 = a2 - b2; if(c1 + c2 == 0){ cout <<...
#include <bits/stdc++.h> using namespace std; using int64 = long long; int main() { int64 T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; int64 S = T1 * A1 + T2 * A2; int64 T = T1 * B1 + T2 * B2; if(S == T) { cout << "infinity" << endl; } else { int64 U = B2 * T2 - A2 * T2; c...
#include <bits/stdc++.h> #define rep(i,n) for (int i = 0; i < (n); ++i) using namespace std; typedef long long ll; int main(){ int t1,t2; cin >> t1 >> t2; ll a1,a2; cin >> a1 >> a2; ll b1,b2; cin >> b1 >> b2; ll dist1 = a1*t1 - b1*t1; ll dist2 = a2*t2 - b2*t2; if(dist1 > 0){ dist1 *= -1; dist2 *= -1...
#include <bits/stdc++.h> using namespace std; int main() { int64_t t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if (t1 * a1 + t2 * a2 == t1 * b1 + t2 * b2) { cout << "infinity" << endl; } else if ((t1 * a1 > t1 * b1) == (t1 * a1 + t2 * a2 > t1 * b1 + t2 * b2)) { cout << 0 << endl; ...
#include<bits/stdc++.h> #define INF 9223372036854775807LL #define inf 1000000007 #define lol long long #define abs(x,y) (max(x,y)-min(x,y)) #define mp make_pair #define fi first #define se second using namespace std; lol a,b,c; lol x,y; signed main(){ cin.tie(0); ios::sync_with_stdio(false); lol d=0,e=0,f=0; lo...
#define _USE_MATH_DEFINES #include <bits/stdc++.h> using namespace std; signed main() { ios::sync_with_stdio(false); cin.tie(0); long long t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; long long x = t1 * (a1 - b1); long long y = t2 * (a2 - b2); if (x + y == 0) { cout << "infinity\n"; ...
#include"bits/stdc++.h" using namespace std; #define REP(k,m,n) for(ll (k)=(m);(k)<(n);(k)++) #define rep(i,n) REP((i),0,(n)) using ll=long long; ll T1,T2,A1,A2,B1,B2; int main() { cin>>T1>>T2>>A1>>A2>>B1>>B2; ll diff = abs((A1-B1)*T1+(A2-B2)*T2); ll gain = abs(A1-B1)*T1; if(diff==0){ cout<<"infinity"<<endl; ...
#include<bits/stdc++.h> using namespace std; int main(){ long long T1,T2,a,b,c,d,e,f; cin>>T1>>T2>>a>>c>>b>>d; if(a*T1+c*T2==b*T1+d*T2){ cout<<"infinity"; return 0; } if(a<b)swap(a,b),swap(c,d); e=a-b;f=c-d; if(e*T1+f*T2>0&&e*T1>0){ cout<<0; return 0; } if(e*T1+f*T2<0&&e*T1<0){ cout<<0; return 0; ...
#include<bits/stdc++.h> using namespace std; #define rep(i,n) for(int i=0;i<n;i++) typedef long long ll; int main(){ ll t1,t2,a1,a2,b1,b2; cin>>t1>>t2>>a1>>a2>>b1>>b2; ll X01=(a1-b1)*t1,X02=X01+(a2-b2)*t2; if(X02==0){cout<<"infinity";return 0;} if(X01<0&&X02<0){cout<<0;return 0;} if(X01>0&&X02>0...
#include <bits/stdc++.h> #define rep(i,n) for(int i = 0; i < n; i++) using namespace std; typedef long long ll; typedef pair<int,int> P; int main() { ll t1,t2,a1,a2,b1,b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; if (a1*t1 + a2*t2 == b1*t1 + b2*t2) { cout << "infinity" << endl; return 0; } if (a1 < b1) { ...
#include <bits/stdc++.h> using namespace std; int main(){ long long T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; if(T1 * A1 + T2 * A2 == T1 * B1 + T2 * B2) puts("infinity"); else { if(T1 * A1 + T2 * A2 > T1 * B1 + T2 * B2) { swap(A1, B1); swap(A2, B2);...
#include <bits/stdc++.h> using namespace std; int t[2]; long long a[2], b[2], x, y; int main() { cin >> t[0] >> t[1] >> a[0] >> a[1] >> b[0] >> b[1]; x = (a[0] - b[0]) * t[0]; y = (a[1] - b[1]) * t[1]; if (x + y == 0) cout << "infinity" << endl; else if ((x > 0) ^ (x + y > 0)) cout << -x / (x + y) + (abs(y)...
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ll t1,t2,a1,a2,b1,b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; a1 *= t1; a2 *= t2; b1 *= t1; b2 *= t2; a2 += a1; b2 += b1; if(a2 == b2) { cout << "infinity" << '\n'; return 0; } ...
#include<bits/stdc++.h> using namespace std; long long t1,t2,a1,a2,b1,b2,a,b,s,ret; int main(){ ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cin>>t1>>t2; cin>>a1>>a2; cin>>b1>>b2; a=a1-b1; b=a2-b2; if(a<0){ a=-a; b=-b; } s=a*t1+b*t2; if(s==0){ cout<<"infinity"<<endl; return 0; } if(...
#include<bits/stdc++.h> using namespace std; typedef long long ll; ll t1,t2,a1,a2,b1,b2; int main() { scanf("%lld%lld%lld%lld%lld%lld",&t1,&t2,&a1,&a2,&b1,&b2); ll a=a1-b1,b=a2-b2; if(a<0) a*=-1,b*=-1; ll k=t1*a+t2*b; if(k==0) {printf("infinity\n");return 0;} if(k>0){printf("0\n");return 0;} ...
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < n; i++) using namespace std; typedef long long int ll; int main() { ll t1, t2, a1, a2, b1, b2; cin >> t1 >> t2 >> a1 >> a2 >> b1 >> b2; ll a = t1 * a1 - t1 * b1; ll b = t2 * a2 - t2 * b2; if (a > 0) { a *= -1; b *= -1; } if (a + b < 0...
#include<bits/stdc++.h> using namespace std; using ll = long long; using P = pair<ll,ll>; const ll mod = 1e9+7; int main(void){ ll t1,t2; ll a1,a2; ll b1,b2; cin >> t1 >> t2; cin >> a1 >> a2; cin >> b1 >> b2; if(b1 > a1){ swap(a1,b1); swap(a2,b2); } ll A = (a1 - b1) * t1; ll B = (b2 - a2) *...
#include <bits/stdc++.h> using namespace std; int main(){ long long int n,t1,t2,a1,a2,b1,b2,sa1,sa2,kotae; cin>>t1>>t2>>a1>>a2>>b1>>b2; sa1=a1*t1-b1*t1; sa2=a2*t2-b2*t2+sa1; if(sa1>0&&sa2>0){ cout<<0; return 0; } if(sa1<0&&sa2<0){ cout<<0; return 0; } if(sa2==0){ cout<<"infinity";...
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ll T1, T2, A1, A2, B1, B2; cin >> T1 >> T2 >> A1 >> A2 >> B1 >> B2; ll step = T1*A1+T2*A2 - (T1*B1+T2*B2); ll hop = T1 * (A1 - B1); // != 0 if(step == 0) { cout << "infinity" << "\n"; return 0; } ...
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i,a) for(int i=0;i<(a);i++) const ll MOD=1000000007; //const ll MOD=998244353; int main(){ ll T[2],A[2],B[2]; cin>>T[0]>>T[1]; cin>>A[0]>>A[1]; cin>>B[0]>>B[1]; ll X=T[0]*A[0]+T[1]*A[1]; ll Y=T[0]*B[0]+T[1]*B[1]; if(X==Y){...
#include<bits/stdc++.h> #define int long long using namespace std; signed main(){ int A,B,C,D,E,F; cin>>A>>B>>C>>D>>E>>F; C-=E,D-=F; E=A*C,F=B*D; if(E<0)E*=-1,F*=-1; if(E+F>0)puts("0"); else if(E+F==0)puts("infinity"); else if(E%(-E-F))cout<<E/(-E-F)*2+1<<endl; else cout<<E/(-E-F)*2<<endl; }