Eroare de compilare: main.cpp: In function 'int main()': main.cpp:78:111: error: 'sqrt' was not declared in this scope rez=rez+sqrt((double)d*d+(double)abs(a[sol[i].x].dist-b[sol[i].y].dist)*abs(a[sol[i].x].dist-b[sol[i].y].dist)); ^ main.cpp:40:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("stalpi3.in","r",stdin); ^ main.cpp:41:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("stalpi3.out","w",stdout); ^ main.cpp:43:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&d); ^ main.cpp:45:64: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a[i].dist,&a[i].col),a[i].poz=i,k=max(k,a[i].col); ^ main.cpp:47:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&b[i].dist,&b[i].col),b[i].poz=i; ^ Non zero exit status: 1