0_0_20613302_15878.cpp:2:25: error: stray '#' in program
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp:2:26: error: 'define' does not name a type
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp:2:68: error: 'p' does not name a type
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp: In function 'double cal_dis(int, int)':
0_0_20613302_15878.cpp:2:121: error: 'p' was not declared in this scope
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp:2:197: error: 'y1' was not declared in this scope
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp:2:200: error: 'y2' was not declared in this scope
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
^
0_0_20613302_15878.cpp: In function 'int main()':
0_0_20613302_15878.cpp:2:329: error: 'p' was not declared in this scope
using namespace std;#define N 40005struct node{ double x,y;}p[N];int n;double cal_dis(int x,int y){ double x1=p[x].x,y1=p[x].y; double x2=p[y].x,y2=p[y].y; return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);}int main(void){ while(~scanf("%d",&n)){ int k=1; for(int i=1;i<=n;i++){ scanf("%lf%lf",&p[k].x,&p[k].y); if(k!=1&&k%2){ p[k-1].x=(p[k-2].x+p[k].x)/2.0; p[k-1].y=(p[k-2].y+p[k].y)/2.0; } k+=2; } p[k-1].x=(p[1].x+p[k-2].x)/2.0; p[k-1].y=(p[1].y+p[k-2].y)/2.0; bool flag=0; for(int i=1;i<=n;i++){ double x1=p[i].x-p[i+n].x; double y1=p[i].y-p[i+n].y; int j,k; k=i-1; j=i+1; for(;j<=i+n;j++,k--){ if(k<=0) k=2*n; double x2=p[j].x-p[k].x; double y2=p[j].y-p[k].y; if(x1*x2+y1*y2!=0) break; if(cal_dis(i,j)!=cal_dis(i,k)) break; } if(j>i+n){ flag=1; break; } } if(flag) printf("YES\n"); else printf("NO\n"); }}
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