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Project_CodeNet
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#include <iostream> #include <cstdio> #include <vector> #include <algorithm> #include <utility> #include <string> using namespace std; int main() { vector<int> l(3, 0); cin >> l[0] >> l[1] >> l[2]; sort(l.begin(), l.end()); int S = l[0] * l[1] / 2; cout << S << endl; return 0; }
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#include <iostream> #include <cmath> using namespace std; int main(){ int ab, bc, ca; cin >> ab >> bc >> ca; float s = (ab + bc + ca) / 2; int result = sqrt(s * (s - ab) * (s - bc) * (s - ca)); cout << result << endl; }
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#include<iostream> using namespace std; int main() { int x, y, z; cin >> x >> y >> z; cout << x * y / 2; return 0; }
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#include <bits/stdc++.h> using namespace std; int main() {int a,b;cin>>a>>b;cout<<a*b*0.5<<endl;}
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#include<stdio.h> #include<math.h> int main() { long long int a,b,c,sum; scanf("%lld%lld%lld",&a,&b,&c); sum=(a*b)/2; printf("%lld",sum); return 0; }
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#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vi = vector<int>; using vvi = vector<vi>; using vll = vector<ll>; using vvll = vector<vll>; using vb = vector<bool>; using vs = vector<string>; typedef pair<ll, ll> P; #define bit(n) (1LL << (n)) //#define int long l...
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#include <bits/stdc++.h> using namespace std; int main() { int a, b, c; cin >> a >> b >> c; cout << a * b / 2 << endl; }
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#include <iostream> using namespace std; int main(void){ // Your code here! int ab, bc, ca; cin >> ab >> bc >> ca; cout << ab*bc/2 << endl; }
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#include <bits/stdc++.h> using namespace std; typedef unsigned long ul; typedef unsigned long long ull; typedef long long ll; typedef vector<ll> vint; typedef vector< vector<ll> > vvint; typedef vector< vector< vector<ll> > > vvvint; typedef vector<string> vstring; typedef vector< vector<string> > vvstring; typedef ...
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#include "bits/stdc++.h" using namespace std; typedef long long LL; typedef vector<int> vi; typedef vector<LL> vl; typedef pair<int,int> pii; typedef pair<LL,LL> pll; typedef vector<pii> vpi; typedef vector<pll> vpl; #define fast ios_base::sync_with_stdio(0),cin.tie(0) #define temp template<typename T> #define debug(...
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#include <bits/stdc++.h> #define rep(i, n) for(int i = 0; i < n; i++) using namespace std; int main() { int ans; vector<int> line(3); rep(i, 3) cin >> line.at(i); sort(line.begin(), line.end()); ans = line.at(0) * line.at(1) / 2; cout << ans << endl; }
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#include <bits/stdc++.h> using namespace std; #define N_MAX 100 int main() { long ab, bc, ca; cin >> ab >> bc >> ca; cout << ab * bc / 2 << endl; return 0; }
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#include <iostream> using namespace std; int main() { int ab, bc, ca; cin >> ab >> bc >> ca; cout << ab * bc / 2 << endl; }
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#include <bits/stdc++.h> using namespace std; #define rep(i,n) for(int i = 0; i < (n);i++) #define sz(x) int(x.size()) typedef long long ll; typedef pair<int,int> P; int main() { vector<int> a(3); cin >> a[0] >> a[1] >> a[2]; sort(a.begin(), a.end()); cout << (a[0] * a[1]) / 2 << endl; return 0; }
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#include <string> #include <iostream> using namespace std; int main(){ int ab, bc, ca; cin >> ab >> bc >> ca; cout << ab * bc / 2; }
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# include<iostream> using namespace std; int main (){ int a,b,c; cin>>a>>b>>c; cout<<(a*b)/2; }
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#include<bits/stdc++.h> #define ll long long #define rep(i, n) for (int i = 0; i < (n); i++) using namespace std; int main() { int n, m, l; cin >> n >> m >> l; cout << n*m/2 << endl; }
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#include <iostream> #include <algorithm> using namespace std; int main() { int a[3],b[2],ans=0; int d; char s[100]; for(int i=0;i<3;i++) cin>>a[i]; d=0; for(int i=0;i<3;i++) { if(a[i]>a[d]) d=i; } int cnt=0; for(int i=0;i<3;i++) { if(i!=d) ...
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#include<iostream> #include<cmath> using namespace std; int main(){ int ab,bc,ca; cin >> ab >> bc >> ca; cout << (ab * bc) /2 << endl; }
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#include<stdio.h> int main(void) { int AB, BC, CA, ABC; scanf("%d", &AB); scanf("%d", &BC); scanf("%d", &CA); ABC = (AB * BC) / 2; printf("%d", ABC); return 0; }
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#include"bits/stdc++.h" using namespace std; typedef unsigned long long ull; typedef long long ll; #define INF 1e+9 int main() { double a, b, c; cin >> a >> b >> c; cout << (a*b) / 2 << endl; return 0; }
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#include <iostream> using namespace std; int main() { int AB, BC, CA; cin >> AB >> BC >> CA; cout << AB * BC / 2 << endl; return 0; }
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/*{{{*/ #include<cstdio> #include<cstdlib> #include<cstring> #include<cmath> #include<algorithm> #include<string> #include<iostream> #include<sstream> #include<set> #include<map> #include<queue> #include<bitset> #include<vector> #include<limits.h> #include<assert.h> #define SZ(X) ((int)(X).size()) #define ALL(X) (X).be...
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#include <iostream> using namespace std; int main(void){ // Your code here! int a,b,c; cin>>a>>b>>c; if(a>=b,a>=c){ cout<<b*c/2<<endl; } else if(b>=a,b>=c){ cout<<a*c/2<<endl; } else if(c>=a,c>=b){ cout<<a*b/2<<endl; } }
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#include <cstdio> int a, b, c; int main() { scanf("%d%d%d", &a, &b, &c); printf("%d\n", a * b / 2); }
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Project_CodeNet
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#include <bits/stdc++.h> #include <iostream> //#include <algorithm> // #include <iomanip> #define ll long long #define map unordered_map #define set unordered_set #define pll pair<ll, ll> #define vll vector<ll> using namespace std; const ll MOD = 1000000007LL; const ll INF = (1LL << 60LL); int main() { ll a, b, c...
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#include <bits/stdc++.h> using namespace std; int main() { vector<int> s(3); for (int i = 0; i < 3; i++) { cin >> s[i]; } sort(s.begin(), s.end()); cout << (s[0] * s[1]) / 2 << endl; }
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#include <bits/stdc++.h> using namespace std; int main() { int a,b,c; cin >> a >> b >> c; cout << a * b / 2 << endl; }
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#include <iostream> #include <algorithm> #include <cmath> #include <vector> #include <stack> #include <queue> #include <map> #include <string> using namespace std; int main() { int ans, n,m,a; cin >> n >> m >> a; cout << n*m/2 << endl; }
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#include<cstdio> #include<iostream> #include<vector> #include<algorithm> using namespace std; int main(void) { int l, m, n; scanf("%d%d%d", &l, &m, &n); printf("%d\n", (l * m) / 2); return 0; }
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#include<cstdio> int main() { int a,b,c; scanf("%d %d %d",&a,&b,&c); printf("%d",(a*b)/2); return 0; }
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#include <bits/stdc++.h> using namespace std; /* #include <boost/multiprecision/cpp_int.hpp> using namespace boost::multiprecision; using cint = cpp_int; */ // Define using ll = long long; using ull = unsigned long long; using ld = long double; const ll dx[4] = {1, 0, -1, 0}; const ll dy[4] = {0, 1, 0, -1}; const ll ...
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Project_CodeNet
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#include<bits/stdc++.h> #define rep(i,n) for (int i=0;i<(n);i++) #define repd(i,a,b) for (int i=(a);i<(b);i++) typedef long long ll; using namespace std; int main() { int a,b,c;cin>>a>>b>>c; cout << a*b/2 << endl; }
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Project_CodeNet
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#include<iostream> #include<string> #include<algorithm> #include<vector> #include<iomanip> #include<math.h> #include<complex> #include<queue> #include<deque> #include<stack> #include<map> #include<set> #include<bitset> #include<functional> using namespace std; #define REP(i,m,n) for(int i=(int)m ; i < (int) n ; ++i ) #...
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#include <iostream> using namespace std; int main(void){ int a, b, c; cin >> a >> b >> c; cout << a*b/2 << endl; }
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#include<bits/stdc++.h> using namespace std; typedef long long ll; #define mod 1000000007 int main(){ int a, b, c; cin >> a >> b >> c; cout << a*b/2 << endl; }
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Project_CodeNet
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#include <iostream> #include <string> #include <vector> #include <map> #include <algorithm> #include <cmath> #include <sstream> #include <iomanip> #include <set> using namespace std; typedef long long int ll; #define rep(i, n) for(int i = 0; i < (int)(n); i++) #define YES cout << "YES" << endl #define Yes cout << "Yes...
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#include <iostream> #include <string> #include <algorithm> #include <iomanip> #include <vector> using namespace std; int main() { int a,b,c; cin >> a >> b >> c; cout << (a * b) / 2 << endl; return 0; }
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#include <iostream> #include <algorithm> #include <vector> #include <string> #include <queue> #include <cmath> #include <map> int main(void) { int a, b, c; std::cin >> a >> b >> c; std::cout << (a * b) / 2 << std::endl; return 0; }
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// Right Triangle #include <iostream> #include <cmath> #include <vector> #include <algorithm> #include <unordered_map> #include <ios> #include <iomanip> #include <string> #include <numeric> using namespace std; int main() { int a, b ,c; cin >> a >> b >> c; cout << a * b / 2 << endl; }
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#include<iostream> #include<algorithm> #include<functional> #include<cstring> using namespace std; int main(){ double a[3]; cin>>a[0]>>a[1]>>a[2]; sort(a,a+3); cout<<a[0]*a[1]/2; return 0; }
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#include <iostream> using namespace std; int main() { int c, a, b, p; cin >> c >> a >> b; if (a > b && a > c) p = b * c; else if (b > c) p = c * a; else p = a * b; cout << p / 2 << '\n'; return(0); }
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#include <bits/stdc++.h> using namespace std; int main(){ int A, B, C; cin >> A >> B >> C; cout << A * B / 2 << endl; return 0; }
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#include <iostream> using namespace std; int main() { int ab, bc, ca; cin >> ab >> bc >> ca; cout << ab * bc / 2 << endl; }
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#include<bits/stdc++.h> using namespace std; int main(){ vector<int> vec(3); for(int i=0; i<3; i++){ cin >> vec.at(i); } sort(vec.begin(), vec.end()); cout << vec.at(0) * vec.at(1) /2 << endl; }
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#include <bits/stdc++.h> using namespace std; int main() { int c,a; cin >> c >> a; cout << c*a/2 << endl; }
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#include <bits/stdc++.h> using namespace std; int main(){ int a, b, c; scanf("%d %d %d", &a, &b, &c); printf("%d\n", a * b / 2); return 0; }
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#include <iostream> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int ab, bc, ca; cin >> ab >> bc >> ca; cout << ab * bc / 2 << "\n"; return 0; }
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#include <bits/stdc++.h> using namespace std; int main() { int a,b,c,S; cin>>a>>b>>c; S=a*b/2; if(a*a + b*b == c*c) cout<< S <<endl; else cout<<"error"<<endl; }
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#include<bits/stdc++.h> using namespace std; int main() { int a[3]; for(int i = 0; i< 3; i++)cin>>a[i]; sort(a, a+3); cout<<(a[0]*a[1])/2<<endl; return 0; }
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// Nitish Chandra // codeforces : msnitiz #include <bits/stdc++.h> using namespace std; int main(){ int ab, bc, ca; cin >> ab >> bc; cout << (ab*bc)/2 << endl; }
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#include <iostream> #include <algorithm> #include <cstdio> #include <cmath> #include <vector> #include <map> #include <set> #include <string> #include <stack> // s.top() #include <bitset> #include <queue> // s.front() using namespace std; typedef long long Int; typedef pair<Int,Int> P; #define print(x) cout<<(x)<<endl...
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#include<iostream> #include<string> #include<vector> #include<algorithm> using namespace std; int main() { int a, b, c; cin >> a >> b >> c; cout << (a*b) / 2 << endl; }
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#include <bits/stdc++.h> using namespace std; int main() { int a, b, c; cin >> a >> b >> c; cout << a * b / 2 << endl; return 0; }
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// AtCoder Beginner Contest 116 - Problem A: Right Triangle (https://atcoder.jp/contests/abc116/tasks/abc116_a) #include <bits/stdc++.h> using namespace std; void solve(int B, int H) { auto ans = (B * H)/2; cout << ans << endl; } int main() { ios::sync_with_stdio(false); int B, H, X; cin >> B >...
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#include <bits/stdc++.h> #define ll long long using namespace std; int main() { int a, b, c; cin >> a >> b >> c; cout << a * b / 2 << endl; }
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#include <iostream> using namespace std; int main() { int ab, bc, ca; cin >> ab >> bc >> ca; cout << bc*ab/2 << endl; }
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#include <bits/stdc++.h> #define fast_io() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); #define PI 3.14159265 #define MOD 1000000007 #define PSET(x,y) fixed<<setprecision(y)<<x #define ll long long #define ld long double #define lop(i,a,b) for(ll i=a;i<b;i++) #define lopr(i,a,b) for(ll i=a;i>=b;i--) #define m...
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Project_CodeNet
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#include <algorithm> #include <bitset> #include <cmath> #include <cstring> #include <deque> #include <functional> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <stdlib.h> #include <string> #include <utility> #include <vector> #define rep(i, n) for (int i = 0; i < (n); i+...
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#include <iostream> using namespace std; int main(void){ int a,b,c; cin >> a >> b >> c; cout << a * b / 2 << endl; return 0; }
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#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<ll, ll> P; typedef pair<ll, P> PP; static const double EPS = 1e-8; static const double PI = 4.0 * atan(1.0); static const ll INF = 1023456789; #define REP(i,n) for(int i=0;i<n;++i) #define REPR(i,n) ...
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#include <iostream> #include <math.h> #include <string> #include <algorithm> #include <ctype.h> #include <vector> #include <numeric> using namespace std; #define ll long long int #define rep(i, a, n) for (int i = a; i < n; i++) #define INF 1e9 #define LINF 1e17 #define MOD (int)(1e9 + 7) #define pi 3.141592653589 #def...
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Project_CodeNet
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#include <bits/stdc++.h> #define FOR(v, a, b) for(int v = (a); v < (b); ++v) #define FORE(v, a, b) for(int v = (a); v <= (b); ++v) #define REP(v, n) FOR(v, 0, n) #define REPE(v, n) FORE(v, 0, n) #define REV(v, a, b) for(int v = (a); v >= (b); --v) #define ALL(x) (x).begin(), (x).end() #define ITR(it, c) for(auto it = (...
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#include<bits/stdc++.h> #define rep(i,m) for(long long i=0; i<m; i++) #define per(i,m) for(long long i=m-1; i>=0; i--) #define FOR(i,n,m) for(long long i=n; i<m; i++) #define ROF(i,n,m) for(long long i=n-1; i>=m; i--) #define all(x) (x).begin(),(x).end() #define EPS (1e-7) #define INF (1e18) #define PI (acos(-1)) #defi...
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Project_CodeNet
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#include <bits/stdc++.h> #include <iomanip> using namespace std; int main(){ int a,b,c; cin >> a >> b >> c; if(c*c == a*a + b*b){ int S = a*b/2; cout << S << endl; } if(b*b == a*a + c*c){ int S = a*c/2; cout << S << endl; } if(a*a == b*b + c*c){ int S = b*c/2; cout << S << endl; ...
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#include <bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin >> a >> b >> c; cout << a*b/2 << endl; return 0; }
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#include<iostream> #include<string> #include<vector> #include<algorithm> using namespace std; int main(){ int AB,BC,CA; cin >> AB >> BC >> CA; int ans = AB*BC/2; cout << ans << endl; return 0; }
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#include<iostream> using namespace std; int main() { // 整数の入力 int a,b,c; cin >> a>>b >>c; // スペース区切りの整数の入力 // 文字列の入力 cout << (a*b)/2 << endl; return 0; }
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//Moh_K_Imar ....... //29/08/2020 ... 5,30. //Ya Rab.... #include <bits/stdc++.h> using namespace std; using ll=long long; using ld=long double; int main(){ ld a,b,c; cin>>a>>b>>c; cout<<(0.5*b)*a<<endl; return 0; }
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#include <bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; cout<<a*b/2<<endl; return 0; }
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#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++) int main(){ ll a, b, c; cin >> a >> b >> c; cout << a * b / 2 << endl; return 0; }
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#include <bits/stdc++.h> using namespace std; #define INF 1000007 #define MOD 1000000007 #define maxn 101 #define maxh 1001 #define FOR(i, a, b) for (int i = (a); i < (b); i++) #define rep(i, n) FOR(i, 0, n) const int dx[4] = {0, 1, -1, 0}, dy[4] = {1, 0, 0, -1}; typedef std::pair<int, int> P; template<typename A, si...
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#include <iostream> #include <algorithm> #include <vector> using namespace std; int main(){ vector <int> A(3); cin >>A[0]>>A[1]>>A[2]; sort(A.begin(),A.end()); int ans=A[0]*A[1]/2; cout <<ans; }
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#include <stdio.h> #include <iostream> #include <algorithm> #include <sstream> #include <complex> #include <vector> #include <list> #include <queue> #include <deque> #include <stack> #include <set> #include <map> #include <cstdio> #include <string> #include <cstdlib> #include <cstring> #include <bits/stdc++.h> using n...
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#include <bits/stdc++.h> using namespace std; using Graph = vector<vector<int>>; #define rep(i, n) for (int i = 0; i < (int)(n); i++) const long long MOD=1e9+7; int main() { int ab,bc; cin>>ab>>bc; cout<<ab*bc/2.0<<endl; }
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#include "bits/stdc++.h" using namespace std; #define rep(i, n) for(int i = 0; i < n; i++) #define REPR(i, n) for(int i = n; i >= 0; i--) #define FOR(i, m, n) for(int i = m; i < n; i++) #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size) #define MOD 1000000007 const long long mod = 1e9+7; typedef vector...
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#include<iostream> using namespace std; int main() { int ab, bc, ca; cin >> ab >> bc >> ca; cout << bc * ab / 2 << endl; return 0; }
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#include <iostream> #include <vector> #include<algorithm> #include <string> #include <cmath> #include<queue> #define PI 3.141592653589793238 #define INF -1 using namespace std; int main() { int a, b, c; cin >> a >> b >> c; printf("%d", a * b / 2); return 0; }
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#include <stdio.h> int main(void) { int A, B, C, n; scanf("%d %d %d", &A, &B, &C); n = A * B / 2; printf("%d", n); return 0; }
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#include <iostream> #include <cmath> #include <vector> #include <string> #include <algorithm> using namespace std; #define FOR(i, a, b) for(int i = (a); i < (b); i++) #define REP(i, n) FOR(i, 0, n) #define ASC(c) sort((c).begin(), (c).end()) #define DESC(c) sort((c).begin(), (c).end(), greater<int>()) #define DUMP(x...
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#include <bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin >> a >> b >> c; int S = (a*b) / 2; cout << S << endl; return 0; }
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#include <iostream> using namespace std; int main(void){ int A, B, C; cin >> A >> B >> C; cout << (A * B) / 2 << endl; }
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#include<bits/stdc++.h> using namespace std; #define ll long long int int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); vector<int> v(3); for(auto &it:v) cin >> it; sort(v.begin(),v.end()); cout << 0.5*v[0]*v[1] << '\n'; return 0; }
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#include <bits/stdc++.h> using namespace std; int main() { int A,B,C; cin >> A >> B; cout << A*B/2 << endl; }
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#include<bits/stdc++.h> using namespace std; int main(){ int a, b, c; cin >> c >> a >> b; cout << c*a/2 << "\n"; }
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#include <iostream> using namespace std; int main() { int ab, bc; cin >> ab >> bc; cout << ab * bc / 2 << endl; return 0; }
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#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(0); int a, b, c; cin >> a >> b >> c; cout << (a*b/2) << endl; return 0; }
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Project_CodeNet
2,019
#include "bits/stdc++.h" using namespace std; int main(){ int a, b, c, s; cin >> a >> b >> c; s = (a + b + c) / 2; int ans = sqrt(s * (s - a) * (s - b) * (s - c)); cout << ans << endl; return 0; }
85
Project_CodeNet
2,019
#include <bits/stdc++.h> using namespace std; int main() { int AB, BC, CA; cin >> AB >> BC >> CA; int S = AB*BC/2; cout << S << endl; }
50
Project_CodeNet
2,019
#include<bits/stdc++.h> using namespace std; #define MAX 100000 int main(){ int x,y,z; cin>>x>>y>>z; cout<<x*y/2<<endl; return 0; }
50
Project_CodeNet
2,020
#include <bits/stdc++.h> using namespace std; int main(int argc, const char *argv[]) { int ab, bc, ca; cin >> ab >> bc >> ca; cout << (ab * bc) / 2 << '\n'; return 0; }
60
Project_CodeNet
2,019
#include <bits/stdc++.h> using namespace std; //#include <boost/multiprecision/cpp_int.hpp> //using multiInt = boost::multiprecision::cpp_int; using ll = long long int; using ld = long double; using pii = pair<int, int>; using pll = pair<ll, ll>; template<typename Q_temp> using smaller_queue = priority_queue <Q_temp, ...
487
Project_CodeNet
2,019
#include <iostream> using namespace std; int main() { int a,b,c; cin>>a>>b>>c; if (a*a+b*b==c*c) cout<<(a*b)/2<<endl; else if (a*a+c*c==b*b) cout<<(a*c)/2<<endl; else cout<<(b*c)/2<<endl; return 0; }
81
Project_CodeNet
2,019
#define _CRT_SECURE_NO_WARNINGS #define _USE_MATH_DEFINES #include <stdio.h> #include <algorithm> #include <utility> #include <functional> #include <cstring> #include <queue> #include <stack> #include <math.h> #include <iterator> #include <vector> #include <string> #include <set> #include <math.h> #include <iostream> ...
241
Project_CodeNet
2,020
#include <algorithm> #include <bitset> #include <cfloat> #include <climits> #include <cmath> #include <complex> #include <cstdio> #include <cstdlib> #include <cstring> #include <functional> #include <fstream> #include <iostream> #include <iomanip> #include <map> #include <math.h> #include <memory> #include <queue> #inc...
2,116
Project_CodeNet
2,020
//#define _GLIBCXX_DEBUG #include <bits/stdc++.h> using namespace std; using ll = long long; #define pp pair<int,int> #define rep(i,n) for(int (i)=0;(i)<(n);(i)++) #define ld long double #define al(a) (a).begin(),(a).end() #define mk make_pair #define check cout<<"?"<<endl; ll MOD=1000000007; ll mod=998244353; int inf...
144
Project_CodeNet
2,020
#include <bits/stdc++.h> using namespace std; using ll= long long; using vi= vector<int>; using vvi= vector<vi>; using vd= vector<double>; using vvd= vector<vd>; using vc= vector<char>; using vb= vector<bool>; #define rep(i,x,n) for(int i=x; i<n; i++) #define all(x) x.begin(), x.end() int main(){ int ab, bc ,ca; ...
113
Project_CodeNet
2,020
#include<bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef double dd; typedef vector<int> vi; typedef vector<ll> vl; typedef pair<int,int> pii; const int mx=1e6+11; const double PI = acos(-1); #define MOD 1000000007 #define nl '\n' #define pb push_back #define F first ...
821
Project_CodeNet
2,019
#include <bits/stdc++.h> #define pb push_back #define REP(i, n) for (signed long long i = 0; i < (n); i++) #define MOD 1000000007 #define INF 98765431219876543 #define bitcnt(a) (ll) __builtin_popcount((a)) #define lb(a, b) lower_bound((a).begin(), (a).end(), (b)) #define ub(a, b) upper_bound((a).begin(), (a).end(), (b...
198
Project_CodeNet
2,020
#include <iostream> #include <vector> #include <algorithm> #include <functional> #include <cmath> #include <map> #define reps(i,s,n) for(int (i) = (s); (i) < (n); (i)++) #define rep(i,n) reps(i,0,n) using namespace std; using ll = long long; int main(){ int a,c,b; cin >> c >> a >> b; int ans = a*c/2; cout...
110