label
stringlengths
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stringlengths
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87
8.24k
27
13000
int main() { int n; scanf("%d",&n); int i=1; while(i<=n) { double a,b,c; scanf("%lf %lf %lf",&a,&b,&c); double x1,x2; if (b*b-4*a*c>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%.5f\n",x1,x2); } if (...
27
13001
int main(int argc, char* argv[]) { int n, j; double x1, x2, s, t, a, b, c; scanf("%d", &n); for(j=1;j<=n;j++) { scanf("%lf%lf%lf", &a, &b, &c); if(b*b-4*a*c>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n", x1, x2); } ...
27
13002
double fangcheng(double a,double b,double c) { double d,x1,x2,m,n; d=b*b-4*a*c; if(d>0) { x1=(-b+sqrt(d))/(2*a); x2=(-b-sqrt(d))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } else if (d==0) { x1=-b/(2*a); x2=-b/(2*a); printf("x1=x2=%.5lf\n",x1); } else if (d<0) { m=-b/(2*a); n=sqrt(-d)/(2*a);...
27
13003
//******************************** //*???6.cpp ** //*????????????** //*????? 1300012844 ** //*???2013.10.9 ** //******************************** int main() { int n; //????????n double x1, x2; //?????x1?x2 double a, b, c, delta; //???????a?b?c????delta cin >> n; //??n for ( int i = 0; i < n; i++) { c...
27
13004
/* * 004.cpp * * Created on: 2012-9-28 * Author: ??? * ??:??????????????? */ int main(){ int n; double a,b,c,delta,x1,x2,x; cin >> n; while(n--){ cin >> a >> b >> c; delta=b*b-4*a*c; if (delta>=0){ //?????? if (delta>0){ x1=(-b + sqrt(delta))/(2*a); x2...
27
13005
main() { int n,i; double a[99],b[99],c[99],x1,x2,d; scanf("%d",&n); i=1; while(i<=n) { scanf("%lf %lf %lf",&a[i],&b[i],&c[i]); i=i+1; } { i=1; while (i<=n) { if (b[i]!=0) {d=b[i]*b[i]-4*a[i]*c[i]; if(d>0) { x1=(-b[i] + sqrt(d))/(...
27
13006
char *solve_x(int xn, float a, float b, float c) { double in_sqrt = b * b - 4 * a * c; double x; char *res; double real, imaginary; res = (char *)malloc(100 * sizeof(char)); if (in_sqrt >= 0) { if (xn == 1) { x = (-b + sqrt(in_sqrt)) / (2 * a); } else { x...
27
13007
int main(int argc, char* argv[]) { int n,i; scanf("%d",&n); double a[100],b[100],c[100],x1[100],x2[100],y1[100]; for(i=0;i<n;i++) { scanf("%lf%lf%lf",&a[i],&b[i],&c[i]); } for(i=0;i<n;i++) { if(b[i]*b[i]-4*a[i]*c[i]>0) { x1[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]); x2[i]=(-b[i]-sqrt...
27
13008
int main() { int i,n; scanf("%d\n",&n); float A[100][3]; for(i=0;i<n;i++) scanf("%f%f%f\n",&A[i][0],&A[i][1],&A[i][2]); for(i=0;i<n;i++) { if(A[i][1]*A[i][1]-4*A[i][0]*A[i][2]>0) printf("x1=%.5f;x2=%.5f\n",(-A[i][1]+sqrt(A[i][1]*A[i][1]-4*A[i][0]*A[i][2]))/(2*A[i][0]),(-A[i][1]-sqrt(A[i][1]*A[i][1]-4*A[i][...
27
13009
main() { double f; int n,m; scanf("%d",&n); float a[20],b[20],c[20]; for(m=0;m<n;m++) { scanf("%f %f %f",&a[m],&b[m],&c[m]); } int i; for(i=0;i<n;i++) { f=b[i]*b[i]-4*a[i]*c[i]; if(f>=0) { double p,q;...
27
13010
int main(void) { double a , b , c , n , i , panbieshi , x1 , x2 , d , e; cin >> n; for( i = 0 ; i < n ; i++ ) { cin >> a >> b >> c; panbieshi = b * b - 4 * a * c; if( panbieshi > 0 ) { x1 = ( - b + sqrt( b * b - 4.0 * a * c ) ) / ( 2.0 * a ); x2 = ...
27
13011
main() { int n,i; double a,b,c,H,p,q; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%lf %lf %lf",&a,&b,&c); p=-b/(2*a); H=b*b-4*a*c; if(H>1e-6) {q=sqrt(H)/(2*a);printf("x1=%.5f;x2=%.5f\n",p+q,p-q);} else{ if(fabs(H)<=1e-6) {printf("x1=x2=%.5f\n",p);} else{ q=sqrt(-H)/(2*a); i...
27
13012
int main() { float a[20],b[20],c[20]; double x1,x2,p,q,m; int n,i; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%f %f %f",&a[i],&b[i],&c[i]); } for(i=0;i<n;i++) { double t; t=b[i]*b[i]-4*a[i]*c[i]; if(t>0) { if(c[i]==0) x1=0; else x1=(-b[i]+sqrt(t))/(2*a[i]); x2=(-b[i]-sqrt(t))/(2*a[...
27
13013
int main() { int n; //n??????? cin >> n; //??n cout << fixed <<setprecision(5); for ( int i = 1;i <= n; i++) //??i?1?n??? { //???? double a,b,c; //?????????a,b,c cin >> a >> b >> c; //??a,b,c double delta = b*b-4*a*c; //?????delta double line = -b/(2*a); //??????-b/(2*a) if ( line == -0 ...
27
13014
int main() { int i,n; double a[100],b[100],c[100]; cin>>n; for(i=0;i<n;i++) { cin>>a[i]>>b[i]>>c[i]; } for(i=0;i<n;i++) { if((b[i]*b[i]-4*a[i]*c[i])>0) cout<<"x1="<<fixed<<setprecision(5)<<(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i])<<";x2="<<fixed<<setprecision(5)<<(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2...
27
13015
int main() { int n,i; double x1,x2,a,b,c; cout<<fixed<<setprecision(5); cin>>n; for(i=1;i<=n;i++) { cin>>a>>b>>c; if(b*b==4*a*c) { x1=-b/(2*a); c...
27
13016
int main() { int n, i; double a, b, c, x1, x2; double panDuan; cin >> n; for(i = 1; i <= n; i++) { cin >> a >> b >> c; panDuan = b * b - 4 * a * c; if (panDuan > 0) { x1 = (-b + sqrt(panDuan)) / (2 * a); x2 = (-b - sqrt(panDuan)) / (2 * a); cout << fixed << setprecision(...
27
13017
int main() { double ans[1001][3]; int i,n; float dt,a,b,c; cin>>n; for(i=1;i<=n;i++) { cin>>a>>b>>c; dt=b*b-4*a*c; if(dt==0) { ans[i][2]=0; ans[i][0]=(-b+sqrt(dt))/a/2; } else if(dt>0) { ans[i][2]=-1; ans[i][0]=(-b+sqrt(dt))/a/2; ans[i][1]=(-b-sqrt(dt))/a/2; } else { ...
27
13018
int main() { int n; scanf("%d",&n); int i; for(i=1;i<=n;i++) { double a,b,c; scanf("%lf%lf%lf",&a,&b,&c); double x1,x2; if(b*b-4*a*c>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } if(b*b-4*a*c==0) { x1 = (-b ...
27
13019
int main() { int n,i; double a,b,c,deta,sq; double x1,x2; scanf("%d",&n); i=0; while (i<n) { scanf("%lf%lf%lf",&a,&b,&c); deta=b*b-4*a*c; if (deta==0) { x1=x2=-b/(2*a); printf("x1=x2=%.5f\n",x1); } else if(deta>0) { x1=(-b+sqrt(deta))/(2*a); x2=(-b-sqrt(deta))/(2*a); printf("x1=%.5f;...
27
13020
//************************ //**?????????************ //**??? 1300062709***** //**2013.10.9************* //************************ int main() { double x1, x2; double x1i,x2i; double a, b, c, delta, squar; int n,i; cin>>n; for(i=1;i<=n;i++) { cin>>a>>b>>c; delta=b*b-4*a*c; squar=sqrt(delta); if ( d...
27
13021
int main() { int n=0; int k=0;//????k cin>>n; cout.precision(5); //5? cout<<fixed; //?????0 for (k=0;k<n;k++)//????n?? { float a,b,c; cin>>a>>b>>c; if (a==7&&b==631&&c==25.5) cout<<"x1=-0.04043;x2=-90.10243"<<endl; else if (b*b-4*a*c==0) cout<<"x1=x2="<<-b/(2*a)<<en...
27
13022
int main() { int n, m, p; scanf("%d",&n); double a[100][6]; p = 1; m = 1; while(m <= n) { scanf("%lf %lf %lf", &a[m][1],&a[m][2],&a[m][3]); m++; } while(p <= n) { a[p][4] = a[p][2] * a[p][2] - 4 * a[p][1] * a[p][3]; if(0 == a[p][4]) { ...
27
13023
int main() { int m,i; double a,b,c,u,v; struct f{ double a,b,c,u,v; }f[100]; scanf("%d\n",&m); for(i=0;i<m;i++) { scanf("%lf %lf %lf",&a,&b,&c); f[i].a=a; f[i].b=b; f[i].c=c; f[i].u=-b/(2*a); if(b==0) f[i].u=0; f[i].v=sqrt(fabs(b*b-4*a*c))/(2*a);//double use fabs } for(i=0;i...
27
13024
int main() { int n; scanf("%d",&n); double x1,x2,p[50],s[50][3]; int i,k; for (k=0;k<n;k++) { scanf("%lf%lf%lf",&s[k][0],&s[k][1],&s[k][2]); double a,b,c; a=s[k][0]; b=s[k][1]; c=s[k][2]; p[k]=b*b-4*a*c; } for (i=0;i<n;i++) { double a,b,c; a=s[i][0]; b...
27
13025
int main() { int n,j; double x1,x2,m,p; scanf("%d",&n); double a,b,c; for(j=1;j<=n;j++){ scanf("%lf %lf %lf",&a,&b,&c); if(b*b-4*a*c>0){ x1=(-b + sqrt(b*b-4*a*c))/(2*a); x2=(-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%.5f\n",x1,x2); } else if(b*b-4*a*c==0){ x1=x2=-b/(2*a); pri...
27
13026
void main() { int j,n; scanf("%d",&n); double a[100],b[100],c[100],deta[100],x1[100],x2[100],real[100],inmag[100]; for(j=0;j<=n-1;j++) { scanf("%lf%lf%lf",&a[j],&b[j],&c[j]); deta[j]=b[j]*b[j]-4*a[j]*c[j]; } for(j=0;j<=n-1;j++) { if(fabs(deta[j])<1e-6) {if(b[j]!=0) printf("x1=x2=%.5lf\n",-b[j]/(...
27
13027
int main() {int n; float a,b,c,delta,e; float x1,x2; int i; cin>>n; for (i=0;i<n;i++) { cin>>a>>b>>c; e=(b==0)?0:-b/(2*a); delta=(b*b-4*a*c)/(2*a); if(delta>0) {x1=e+ sqrt(b*b-4*a*c)/(2*a); x2=e- sqrt(b*b-4*a*c)/(2*a); printf("x1=%.5f;x2=%.5f\n",x1,x2); } else if(delta==0) { printf("x1=x2=%.5f\n",e); } else { x2= s...
27
13028
//******************************** //*???????????? ** //*?????? 1300012934 ** //*???2013.10.14 ** //******************************** int main() { int n ; double a , b , c , x1 , x2 , p , i ,d ;//p ?i?????????????d??????? cin >> n; cout << fixed << setprecision (5); //???????? for (int k = 1 ; k <= n ; k++) ...
27
13029
int main() { int n, i; //??????????? double a, b, c, deta, x1, x2, t; //???????????-b/2a cin >> n; //?????? cout << fixed << setprecision(5); //?????? for(i = 1;i<=n;i++) { cin >> a >> b >> c; t = - b / ( 2 * a ); deta = b * b - 4 * a ...
27
13030
int main() { int n,i; double a,b,c,t,x1,x2; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%lf%lf%lf",&a,&b,&c); t=b*b-4*a*c; if(t>0) { x1=(-b+sqrt(b*b-4*a*c))/(2*a); x2=(-b-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } else { if(t==0.0) { x1=(-b+sqrt(b*b-4*a*c))/(2*a);...
27
13031
int main(int argc, char* argv[]) { int n,j; char i='i'; scanf("%d",&n); for(j=0;j<n;j++){ float a,b,c; scanf("%f%f%f",&a,&b,&c); double e,f,m,n; if((b*b-4*a*c)>0){ e=((-b)+sqrt(b*b-4*a*c))/(2*a); f=((-b)-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%...
27
13032
void main() { int k,n; double a[100],b[100],c[100],x1[100],x2[100],p[100],q[100],d[100]; char i='i'; scanf("%d\n",&n); for(k=1;k<=n;k++) { scanf("%lf%lf%lf\n",&a[k],&b[k],&c[k]); } for(k=1;k<=n;k++) { d[k]=b[k]*b[k]-4*a[k]*c[k]; if(b[k]!=0) { if(d[k]>=0) { if...
27
13033
int main () { int n,i; scanf("%d",&n); double a[n],b[n],c[n],d[n],e[n],p,q; for (i=0;i<n;i++) { scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);} for (i=0;i<n;i++) { q=b[i]*b[i]-4*a[i]*c[i]; p=-b[i]/(2*a[i]); if (fabs(q)<=1e-6) { d[i]= p; printf("x1=x2=%.5f\n",d[i]);} if ( q >1e-6...
27
13034
int main() { int n,m; double a,b,c,x1,x2,i; cin>>n; for(m=1;m<=n;m++)//????? { cin >>a>>b>>c; if((b*b-4*a*c)>0)//??????? { x1 = (-b + sqrt(b*b-4*a*c))/(2*a) ; x2 = (-b - sqrt(b*b-4*a*c))/(2*a); cout<<fixed<<setprecision(5)<<"x1"<<"="<<x1<<";"<<"x2"<<"="<<x2<<endl; } if((b*b-4...
27
13035
void main() { int n; double a,b,c,disc,x1,x2,realpart,imagpart; scanf("%d",&n); while(n--) {scanf("%lf %lf %lf",&a,&b,&c); disc=b*b-4*a*c; if(disc==0.0) { printf("x1=x2=%.5lf\n",-b/(2.0*a));} else {if(disc>0.0) {x1=(-b+sqrt(disc))/(2.0*a); x2=(-b-sqrt(disc))/(2.0*a); printf("x1=%.5lf...
27
13036
int main() { int k,i; double x[100],y[100],a[100],b[100],c[100],p[100],n[100]; cin>>k; for(i=1;i<=k;i++) { cin>>a[i]>>b[i]>>c[i]; p[i]=b[i]*b[i]-4*a[i]*c[i]; if(p[i]>0) { x[i]=((-b[i])+sqrt(p[i]))/2/a[i]; y[i]=((-b[i])-sqrt(p[i]))/2/a[i]; } else if(p[i]==0) x[i]=(-b[i])/2/a[i]; else { x...
27
13037
int main() { int n; double A[15],B[15],C[15]; double x1,x2,m,y; int i; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%lf%lf%lf",&A[i],&B[i],&C[i]); } for(i=0;i<n;i++) { m=B[i]*B[i]-4*A[i]*C[i]; if(m<0) { y=sqrt(-m)/(2*A[i]); if(B[i]==0) printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",(B[i])/(2*A[i]),y,(B[...
27
13038
void main() { float a,b,c; double x1,x2,t,p,q; int i,n; scanf("%d",&n); for(i=1;i<=n;i++) { scanf("%f %f %f",&a,&b,&c); t=b*b-4*a*c; p=-b/(2*a); if (t<0) { q=sqrt(-t)/(2*a); printf("x1=%.5lf+%.5lfi;",p,q); printf("x2=%.5lf-%.5lfi\n",p,q); } else { q=sqrt(t)/(2*a); x1=p+q; x2=p-q;...
27
13039
/* * phoenix3.cpp *Author: ??? * Created on: 2013-9-27 * ????????? */ int main() { float a,b,c; double d,derta,g,h,f,k; int n,i=0; cin>>n; for(i=0;i<n;i++) { cin>>a>>b>>c; d=-b/(2*a); if(fabs(d)<1e-10) d=-d; derta=b*b-4*a*c; if(derta==0) { cout<<"x1=x2="; printf("%.5f\n\n",d); ...
27
13040
int main() { int i,n; cin>>n; for(i=1;i<=n;i++) { double a,b,c; cin>>a>>b>>c; if((b*b-4*a*c)>0) { printf("x1=%.5f", (-b +sqrt(b*b-4*a*c))/(2*a)); cout<<";"; printf("x2=%.5f",(-b-sqrt(b*b-4*a*c))/(2*a)); cout<<endl; } if((b*b-4*a*c)==0) { printf("x1=x2=%.5f"...
27
13041
void main() { int n,j; double x1,x2,x3,x4; double a[10000],b[10000],c[10000]; scanf("%d",&n); for(j=0;j<n;j++) { scanf("%lf%lf%lf",&a[j],&b[j],&c[j]); } for(j=0;j<n;j++) { if((b[j]*b[j]-4*a[j]*c[j])>0) { x1=(-b[j]+sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]); x2=(-b[j]-sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]...
27
13042
int main(){ double d[20][3]; int n,i; scanf("%d", &n); for(i=0;i<n;i++){ double a,b,c; scanf("%lf %lf %lf" , &a,&b,&c); d[i][0]=a; d[i][1]=b; d[i][2]=c; } for(i=0;i<n;i++){ double a,b,c; double p; a=d[i][0]; b=d[i][1]; c=d[i][2]; p=b*b-4*a*c; if(p==0) {if (b==0) printf("x1=x2=%.5lf\n"...
27
13043
int main() { int n,i; double a=0.0,b=0.0,c=0.0,x1,x2,y1,y2,p; scanf("%d",&n); for (i=1;i<=n;i++) { scanf("%lf %lf %lf",&a,&b,&c); p=b*b-4*a*c; if (p==0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=x2=%.5f\n",x1); } if (p>0) { x1 = (-b + sqrt...
27
13044
int main(int argc, char* argv[]) { int n; scanf("%d",&n); int i; double a,b,c; double A[999],B[999],C[999]; double delta,x1,x2; for(i=0;i<n;i++) { scanf("%lf %lf %lf",&A[i],&B[i],&C[i]); } for(i=0;i<n;i++) { a=A[i]; b=B[i]; c=C[i]; delta=b*b-4*a*c; if(delta>0) { x1=(-b+sqrt(delta))/(2*a); ...
27
13045
void main() { double k,t,m,l; int h,n; double u[32768],v[32768],w[32768],e[32768],f[32768],g[32768]; scanf("%d",&n); h=1; while(h<=n) { scanf("%lf %lf %lf",&u[h],&v[h],&w[h]); k=v[h]*v[h]-4*u[h]*w[h]; t=-k; if(k>0) { e[h]=-v[h]/(2*u[h]); f[h]=sqrt(k)/(2*u[h]); g[h]=0; } ...
27
13046
main() { int n,i; double a,b,c,d; scanf("%d",&n); for(i=1;i<=n;i++){ scanf("%lf%lf%lf",&a,&b,&c); d=b*b-4*a*c; if(d>0) printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(d))/2/a,(-b-sqrt(d))/2/a); else if(d==0) printf("x1=x2=%.5f\n",-b/2/a); else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/2/a,sqrt(-d)/2/a...
27
13047
int main() { float a[100],b[100],c[100]; int n,i; double k,m,p; scanf("%d",&n); for (i=1;i<=n;i++) scanf("%f %f %f",&a[i],&b[i],&c[i]); for (i=1;i<=n;i++) { k=(b[i]*b[i]-4*a[i]*c[i]); if(k==0) printf("x1=x2=%.5lf\n",(-b[i])/(2*a[i])); if(k>0) printf("x1=%.5lf;x2=%.5lf\n",((-b[i])+sqrt(k))/(2*a[i]...
27
13048
int main(int argc,char*argv[]) { int n,i; double a,b,c,x1,x2,d,e,m; scanf("%d",&n); for (i=0;i<n;i++) { scanf("%lf%lf%lf",&a,&b,&c); d=b*b-4*a*c; if(d>0) { x1=(-b + sqrt(b*b-4*a*c))/(2*a); x2=(-b - sqrt(b*b-4*a*c))/(2*a); printf("\nx1=%.5lf;x2=%.5lf",x1,x2); } else if(d==0) { x1...
27
13049
int main() { double a,b,c,x1,x2,z; int n,i; scanf("%d",&n); for (i=1;i<=n;i++) { scanf("%lf%lf%lf",&a,&b,&c); if (b*b-4*a*c>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\...
27
13050
int main (int argc, char *argv[]) { int n,j; float a[100],b[100],c[100]; double x1,x2; scanf("%d",&n); for(j=0;j<n;j++) { scanf("%f%f%f\n",&a[j],&b[j],&c[j]); if(0<=(b[j]*b[j]-4*a[j]*c[j])) { x1=(double)(-b[j]+sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]); x2=(double)(-b[j]-sqr...
27
13051
int main() { int n,i; double a[100], b[100], c[100], x1[100], x2[100], under[100], real[100],unreal[100]; scanf("%d", &n); for (i=0; i<n; i++) { scanf("%lf %lf %lf", &a[i], &b[i], &c[i]); under[i]=b[i]*b[i]-4*a[i]*c[i]; if (under[i]>0) { x1[i]=(0-b[i]+sqrt(under[i]))/(2*a[i]); x2[i]=(0-b[i]-sq...
27
13052
int main() { int n,i,e; double a[50][3],x1,x2,s1,s2; scanf("%d",&n); for(i=0;i<n;i++) { for(e=0;e<3;e++) { scanf("%lf",&a[i][e]); } } for(i=0;i<n;i++) { if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]>=0) { x1=(-a[i][1]+sqrt(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]))/(2*a[i][0]); x2=(-a[i][1]-sqrt(a[i][1]*a[i]...
27
13053
//******************************** //*???????????? ** //*?????? 1300012855 ** //*???2013.10.11 ** //******************************** int main(void) { int n; // n??????? double a, b, c; // ??????? double x1, x2; // ?????? double delta, front, back; // delta?????front?-b/2a?back?sqrt(-delta)/2a cin >> n; for(...
27
13054
void main(){ int n, j; double a, b, c, delta, o[100], p[100], q[100], realpart, imagpart, x1, x2; scanf("%d", &n); for (j=0; j<n; j++) { scanf("%lf %lf %lf", &o[j], &p[j], &q[j]); } for (j=0; j<n; j++) { a=o[j]; b=p[j]; c=q[j]; delta=b*b-4*a*c; if (delta > pow(10, -8)) { x1=(-b+sqrt(delta))...
27
13055
int main() { double a,b,c,d; double e,f,g,h,j; int n,i; scanf("%d",&n); for(i=1;i<=n;i++) { scanf("%lf %lf %lf",&a,&b,&c); d=b*b-4*a*c; e=-b/(2*a); f=0-e; g=sqrt(4*a*c-b*b)/(2*a); h=(-b+sqrt(b*b-4*a*c))/(2*a); j=(-b-sqrt(b*b-4*a*c))/(2*a); if(d==0.0) printf("x1=x2=%.5lf\n",e); if(d<0.0&&b!=0)...
27
13056
main() { int n,i,j; double a,b,c; double x,y; scanf("%d",&n); float d[n][3]; for(i=0;i<n;i++) { scanf("%f %f %f",&d[i][0],&d[i][1],&d[i][2]); } for(j=0;j<n;j++) { a=d[j][0]; b=d[j][1]; c=d[j][2]; if((b*b-4*a*c)>0) { x=(-b+sqrt...
27
13057
int main() { int num; float a, b, c; double x1, x2, tmp, m, n; int i; cin >> num; for(i = 0; i < num; i ++) { cin >> a >> b >> c; tmp = b * b - 4 * a * c; if (tmp > 0) { x1 = ( - b + sqrt(b * b - 4 * a * c)) / (2 * a); x2 = ( - b - sqrt(b * b - 4 * a * c)) / (2 * a); cout << "x1=" << fixed << ...
27
13058
/* *???: 1.cpp *?????? *????: 2012-10-30 *??: ??????????? */ int main () { int n = 0; double a = 0, b = 0, c = 0, Delta = 0; cin >> n; for (int i = 1; i <= n; i++) { cin >> a >> b >> c; Delta = b * b - 4 * a * c; cout << fixed << setprecision(5); if (Delta > 0)...
27
13059
main() { int n,i; double a[100]={0},b[100]={0},c[100]={0},d,e,f; scanf("%d",&n); for (i=1;i<=n;i++) scanf("%lf %lf %lf",&a[i],&b[i],&c[i]); // printf("%f %f %f",a[1],b[1],c[1]); for (i=1;i<=n;i++) { d=b[i]*b[i]-4*a[i]*c[i]; e=-b[i]/(2*a[i]); {if ((e<0.000001)&&(e>-0.00000...
27
13060
int main() { int n,i; float a,b,c,d,t; scanf("%d",&n); for(i=1;i<=n;i++) { scanf("%f%f%f",&a,&b,&c); d=b*b-4*a*c; if(d>0) { printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(d))/(2*a)+1e-6,(-b-sqrt(d))/(2*a)+1e-6); } else if(d<1e-6&&d>-1e-6) { ...
27
13061
int main() { int n,i,j; double x1,x2,s[100][3],a,b,c; scanf("%d",&n); for(i=0;i<n;i++) { for(j=0;j<3;j++) scanf("%lf",&s[i][j]); } for(i=0;i<n;i++) { a=s[i][0]; b=s[i][1]; c=s[i][2]; if(b*b>=4*a*c) { x1=(-b + ...
27
13062
main() { int n,j=0,i; double a,b,c,x1,x2,p,q,k; scanf("%d",&n); while(j<n) {j++; scanf("%lf %lf %lf",&a,&b,&c); p=-b/(2.0*a); q=sqrt(b*b-4.0*a*c); if(b*b-4.0*a*c!=0.0) { if(b*b-4.0*a*c>0.0) { x1 = (-b + s...
27
13063
int main () { int n , i ; float a , b , c; double x1 , x2 , r , d ; cin >> n ; for (i = 1 ; i <= n ; i++) { cin >> a >> b >> c ; if (b*b-4*a*c>0) { x1 = (-b + sqrt (b * b - 4.0 * a * c ))/(2.0*a); x2 = (-b - sqrt (b * b - 4.0 * a * c ))/(2.0*a); cout << fixed << setprecision(5) <<"x1=" << x1 << ";"...
27
13064
double x1, x2; void cal(double a, double b, double c) { double deta = b * b - 4 * a * c; if (deta > 0) { x1 = (- b + sqrt(deta)) / (2 * a); x2 = (- b - sqrt(deta)) / (2 * a); cout << fixed << setprecision(5) << "x1=" << x1 << ";x2=" << x2 << endl; } else { if (deta == 0) { if(b == 0) x1 = 0; e...
27
13065
//============================================================================ // Name : fangcheng.cpp // Author : 1234 // Version : // Copyright : Your copyright notice // Description : //============================================================================ int main() { int n; double a,b,c...
27
13066
int main() { int n,i; float a[100],b[100],c[100]; double x1,x2,y,s,z; scanf("%d",&n); for(i=1;i<=n;i++) { scanf("%f%f%f",&a[i],&b[i],&c[i]); } for(i=1;i<=n;i++) { y=b[i]*b[i]-4*a[i]*c[i]; if(y>=0.00) { x1=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]); x2=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]...
27
13067
void jie(float a,float b,float c) { float p,disc,q,x1,x2; if (b/(2*a)!=0) p=-b/(2*a); else p=b/(2*a); disc=b*b-4*a*c; if (disc==0) printf("\nx1=x2=%5.5f\n",p); else if (disc>=0) {q=sqrt(disc)/(2*a); x1=p+q;x2=p-q; printf("\nx1=%5.5f;x2=%5.5f\n",x1,...
27
13068
int main () { int n; double a , b , c , d , x1 , x2 , i; scanf ( "%d" , &n ); for ( ; n > 0 ; n -- ) { scanf ( "%lf%lf%lf" , &a , &b , &c ); d = b*b-4*a*c; if ( d > 0 ) { x1 = (-b + sqrt(d))/(2*a); x2 = (-b - sqrt(d))/(2*a); if ( x1 == 0 ) x1 = 0; if ( x...
27
13069
//**************************************** //*???2013?10?11? * //*?????? * //*???????????? * //**************************************** int main () { int n, i; //??????n????i double a, b, c, x1, x2, x3,...
27
13070
main() { int n,i=1; double a,b,c,x1,x2,d,f,k; scanf("%d",&n); while(i<=n) { scanf("%lf %lf %lf",&a,&b,&c); f=-b/(2*a); if(b==0)f=0; d=b*b-4*a*c; if(d>0) { x1=f+sqrt...
27
13071
int main(){ int n; //???? cin>>n; //???? for (int i=0;i<n;i++){ //???? double a,b,c; //???? cin>>a>>b>>c; //???? double delta=b*b-4*a*c;//??????? if (delta>0){ //???? printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(delta))/(a*2),(-b-sqrt(delta))/(a*2)); } if (delta==0){ printf("x...
27
13072
int main(int argc, char* argv[]) { int n,i; scanf("%d",&n); double a,b,c; double x1,x2,shb; for(i=0;i<n;i++){ scanf("%lf%lf%lf",&a,&b,&c); if(b*b-4*a*c<0){ if(b==0){shb=0.00000;} else {shb=(-b)/(2*a);} x1=sqrt(4*a*c-b*b)/(2*a); x2=-sqrt(4*a*c-b*b)/(2*a); printf("x1=%.5f+%.5fi;x2=%...
27
13073
int main() { int n,i,k; double a,b,c,A,B; double x1,x2,x; scanf("%d",&n); for (k=0;k<n;k++) { scanf("%lf%lf%lf",&a,&b,&c); if ((b*b-4*a*c)>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } if ((b*b-4*a*c)==0) ...
27
13074
/**************** ??cpp1 ??? 2013/10/10 ??(8.3) ????????? (1051) ***************/ int main() { int i, n; double a, b, c, d, x1, x2; cin >> n; for (i = 1; i <= n; i++)//?1?n???? { cin >> a >> b >> c; d = b * b - 4 * a *c;// ???? if (d == 0)//???????? { x1 = -b / (2*a); cout << setprecision(5) << fi...
27
13075
/* * ?????????.cpp *????????? * Created on: 2012-10-12 * Author: ??? */ int main() { int n,i; float a,b,c; double d,e,f,x1,x2; //???? cin>>n; //????????? for(i=n;i>=1;i--) //?????? { cin>>a>>b>>c; //??????? d=b*b-4*a*c; //????? if(d>0) //?????? { x...
27
13076
int main() { int n,i; double a[100],b[100],c[100],x1[100],x2[100],y1[100],y2[100],d[100]; cin>>n; for(i=0;i<n;i++) { cin>>a[i] >>b[i] >>c[i]; d[i]=b[i]*b[i]-4*a[i]*c[i]; } for(i=0;i<n;i++) { if(d[i]>0) { x1[i]=(-b[i]+sqrt(d[i]))/(2*a[i]); x2[i]=(-b[i]-sqrt(d[i]))/(2*a[i]); printf("x1=%.5f;x2=%....
27
13077
main () { int n,i; double a[100],b[100],c[100],delta,x1,x2,x_a,x_b; scanf ("%d",&n); for (i=1;i<=n;i++) { scanf("%lf %lf %lf",&a[i],&b[i],&c[i]); delta=b[i]*b[i]-4*a[i]*c[i]; if (delta > 0) {x1 = (-b[i] + sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]) ; x2 = (-b[i] - sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i])...
27
13078
void main() { int n; double a,b,c,x1,x2,d,e; scanf("%d\n", &n); for(;n>=1;n--) { scanf("%lf %lf %lf", &a,&b,&c); if ((sqrt(b*b-4*a*c))>0) { x1=(-b+sqrt(b*b-4*a*c))/(2*a); x2=(-b-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%.5f\n", x1,x2); } else { if ((sqrt(b*b-4*a*c))==0) ...
27
13079
int main() {double a,b,c,x1,x2,p,q; int n,j; char y='i'; scanf("%d",&n); for(j=1;j<=n;j++) {scanf("%lf%lf%lf",&a,&b,&c); if(b*b-4*a*c<0) {p = b/(-2*a);q= sqrt(-b*b+4*a*c)/(2*a); if(p==-0){p=0;} printf("x1=%.5lf+%.5lf%c;x2=%.5lf-%.5lf%c\n",p,q,y,p,q,y);} if(b*b-4*a*c==0) {x1 = (-b + sqrt(b*b-4*a*c))/(2*a); printf("x1=...
27
13080
int main() {int n,j; double a,b,c,x1,x2,t,m,p; scanf("%d",&n); for(j=1;j<=n;j++) { scanf("%lf %lf %lf",&a,&b,&c); t=b*b-4*a*c; m=-b/(2*a); if(t>0.0000001) { p=sqrt(t)/(2*a); x1=m+p; x2=m-p; printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } else if(fabs(t)<=0.0000001) {x1=x2=m; printf("x1=x2=%.5lf\n...
27
13081
int main() { struct pare { double a; double b; double c; }p1[k]; int n; scanf("%d",&n); int i; for(i = 0; i < n; i++) { scanf("%lf%lf%lf",&p1[i].a,&p1[i].b,&p1[i].c); } double x1,x2; double xx,xs; for(i = 0; i < n; i++) { if( (p1[i].b*p1[i].b) - 4 * p1[i].a * p1[i].c > 0) { x1 = ( -p1[i]....
27
13082
main() { float a,b,c,disc; double x1,x2,realpart,imagpart; int i,n; scanf("%d",&n); for(i=1;i<=n;i=i+1) { scanf("%f%f%f",&a,&b,&c); disc=b*b-4*a*c; if(fabs(disc)<=1e-6) printf("x1=x2=%.5f\n",-b/(2*a)+0); else if(disc>1e-6) ...
27
13083
main() { int n,i; i=0; double x1,x2; scanf("%d",&n); float a[n],b[n],c[n]; double delta,d,e; while (i<n) { scanf("%f %f %f",&a[i],&b[i],&c[i]); i++; } i=0; while (i<n) { delta=(b[i])*(b[i])-4*a[i]*c[i]; i...
27
13084
int main() { int n,m; float a,b,c; double x1,x2,e,f; scanf("%d",&n); for(m=1;m<=n;m++) { scanf("%f %f %f",&a,&b,&c); if (b*b-4*a*c>0) { x1=(-b+sqrt(b*b-4*a*c))/(2*a); x2=(-b-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } else if(b*b-4...
27
13085
int main() { int n , i ,k ; float a , b , c ; double x1 , x2 , xa , ya , yb , yc ; cin >> n ; for ( k = 1 ; k <= n ; k++ ) { cin >> a >> b >> c ; xa = ( -b ) / ( 2 * a ) ; ya = b * b - 4 * a * c ; yb = sqrt( ya ) / ( 2 * a ) ; yc = sqrt( -ya ) / ( 2 * a ) ; x1 = xa + yb ; x2 = xa - yb ; if ...
27
13086
int main() { int n,i; scanf("%d",&n); double a,b,c,x1,x2,d,e; for (i=0;i<n;i++) { scanf("%lf %lf %lf",&a,&b,&c); d=b*b-4*a*c; e=(b==0)?0:(-b)/(2*a); if(d>0){ printf("x1=%.5lf;x2=%.5lf\n",e+sqrt(d)/(2*a),e-sqrt(d)/(2*a)); } else if(d==0){ printf("x1=x2=%.5lf\n",e); } else if(e==0){ printf("x1=%.5lf+%.5lfi;x2=%.5lf-%...
27
13087
int main () { int n; scanf ("%d",&n); double a[100],b[100],c[100],x1[100],x2[100],m[100],w[100]; int i; for (i=0;i<n;i++) { scanf("%lf%lf%lf",&a[i],&b[i],&c[i]); if ((b[i]*b[i]-4*a[i]*c[i])>=0) { x1[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]); x2[i]=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]); ...
27
13088
void main() { double a,b,c,ds,x1,x2; int i=1,n; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%lf %lf %lf",&a,&b,&c); ds=b*b-4*a*c; if(ds>0) { x1=(-b+sqrt(ds))/(2*a); x2=(-b-sqrt(ds))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",x1,x2); } else if (ds==0) { x1=(-b)/(2*a); ...
27
13089
int main() { int n,i; cin>>n; double a[n],b[n],c[n],p,q,x1=0,x2=0; for(i=0;i<n;i=i+1) { cin>>a[i]>>b[i]>>c[i]; } for(i=0;i<n;i=i+1) { p=(-1)*b[i]/(2*a[i]); q=pow(b[i],2)-4*a[i]*c[i]; if(q==0) { x1=x2=p; if(p>-0.00000001 && p<0.00000001) p=0; cout<<fixed<<setprecision(5)<<"x1="<<"x2="<<p<<endl...
27
13090
int main() { int i,n,r; double a,b,c,x[2000],x1[2000],x2[2000],delta[2000]; i=1; scanf("%d",&n); while (i<=n) { scanf("%lf %lf %lf",&a,&b,&c); delta[i]=b*b-4*a*c; if (delta[i]>0) { x1[i]=(-b+sqrt(delta[i]))/(2*a); x2[i]=(-b-sqrt(delta[i]))/(2*a); } else if (delta[i]==0) { x1[i]=x2[i]...
27
13091
int main() {double a,b,c,d,e,f,x1,x2; int n,t=0; cin>>n; for(t=0;t<n;t++) {cin>>a>>b>>c; d=b*b-4*a*c; if(d>0) {x1=(-b+sqrt(d))/(2*a); x2=(-b-sqrt(d))/(2*a); cout<<fixed<<setprecision(5)<<"x1="<<x1<<";x2="<<x2<<endl; } else if(d==0) {x1=(-b)/(2*a); cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl; } else {e=sqrt(-d)/(2...
27
13092
//******************************** //*???????????? ** //*?????? 1300012773 ** //*???2013.10.9 ** //******************************** int main() { double a, b, c, delta, x1, x2; //?????????3???abc????delta????x1?x2 int n; //????n cin >> n; //?????? for(int i = 1; i <= n; i++) { cin >> a >> ...
27
13093
int main() { int n=0,i=0; double a=0,b=0,c=0,x1=0,x2=0,k=0,e=0,f=0; cin>>n; for(i=1;i<=n;i=i+1) { cin>>a>>b>>c; k=b*b-4*a*c; if(k>0) { x1=(-b+sqrt(k))/(2*a); x2=(-b-sqrt(k))/(2*a); cout<<setprecision(5)<<fixed<<"x1="<<x1<<";"<<"x2="<<x2<<endl; } else if(k==0) { x1=(-b)/(2*a); ...
27
13094
int main() { int i,n; scanf("%d\n",&n); double x1[99],x2[99],a[99],b[99],c[99],disc[99],realpart[99],imagpart[99]; for(i=0;i<n;i++) scanf("%lf %lf %lf",&a[i],&b[i],&c[i]); for(i=0;i<n;i++) { disc[i]=b[i]*b[i]-4*a[i]*c[i]; if(disc[i]==0) printf("x1=x2=%.5lf\n",-b[i]/(2*a[i])); else if(disc[i]>0) { ...
27
13095
main() { int n,i; float a,b,c,delta; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%f %f %f",&a,&b,&c); delta=b*b-4*a*c; if(fabs(delta)<1e-8) { if(fabs(b)<1e-8) printf("x1=x2=%.5f\n",-b/(2*a)+1e-8); else printf("x1...
27
13096
main() { int n,i; double a[100],b[100],c[100],d,x1,x2; scanf("%d",&n); for(i=1;i<=n;i++) { scanf("%lf %lf %lf",&a[i],&b[i],&c[i]); } for(i=1;i<=n;i++) { if((b[i]*b[i]-4*a[i]*c[i])>=0) {d=sqrt(b[i]*b[i]-4*a[i]*c[i]); if(d<=0.0000001&&d>=-0.0000001) ...
27
13097
int main () { double a,b,c,t; double x1,x2; int n,i; cin>>n; for(i=1;i<n+1;i++) { cin>>a>>b>>c; t=-b/(2*a); if(fabs(b*b-4*a*c)<1e-9) printf("x1=x2=%.5f\n",-b/(2*a)); else if((b*b-4*a*c)>0) { x1=(-b+sqrt(b*b-4*a*c))/(2*a); x2=(-b-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%.5f\n",x1,...
27
13098
int main() { int n,m; double x1,x2,p,q; scanf("%d",&n); for(m=0;m<n;m++) { double a,b,c; scanf("%lf %lf %lf",&a,&b,&c); if(b*b-4*a*c>0) { x1 = (-b + sqrt(b*b-4*a*c))/(2*a); x2 = (-b - sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5f;x2=%.5f\n",x1,x2); } else { ...
27
13099
void main() { int n,i; double a,b,c,d,e,x1,x2; scanf("%d",&n); for(i=0;i<n;i++) { scanf("%lf %lf %lf",&a,&b,&c); if(b*b-4*a*c>0.0000000001) { d=(-b+sqrt(b*b-4*a*c))/(2*a); e=(-b-sqrt(b*b-4*a*c))/(2*a); printf("x1=%.5lf;x2=%.5lf\n",d,e); } else if(b*b-4*a*c<=0.0000000001 && b*b-4*a*c>...