Eroare de compilare: user.cpp:1:26: warning: extra tokens at end of #include directive [enabled by default] #include <bits/stdc++.h> using namespace std; struct bred { long long x,y,d; }; long long n,i,x,y,d; bred t[1005]; double gx,gy; double D[1005],D1[1005]; bool cmp(bred x, bred y) { return atan2(y.x-gx,y.y-gy)<atan2(x.x-gx,x.y-gy); } double dist(bred x, bred y) { return sqrt((x.x-y.x)*(x.x-y.x)+(x.y-y.y)*(x.y-y.y)); } int main() { ifstream cin("mosia.in"); ofstream cout("mosia.out"); cin>>n; for (i=1; i<=n; i++) { cin>>x>>y>>d; t[i].x=x; t[i].y=y; t[i].d=d; gx+=x; gy+=y; } gx/=2; gy/=2; sort(t+1,t+n+1,cmp); t[n+1]=t[1]; t[0]=t[n]; for (i=1; i<=n; i++) D1[i]=D[i]=dist(t[i-1],t[i+1])*t[i].d/2; D[1] = 0; for (i=1; i<=n; i++){ D[i]=max(D[i-1],D[i-2]+D[i]); D1[i]=max(D1[i-1],D1[i-2]+D1[i]); } cout<<setprecision(4)<<fixed<<max(D[n],D1[n]); } ^ /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crt1.o: In function `_start': (.text+0x18): undefined reference to `main' collect2: error: ld returned 1 exit status