Compilare: main.cpp: In function 'int main()': main.cpp:29:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;++i) ^~~ main.cpp:37:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' long long s=0; ^~~~ main.cpp:21:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("banana.in","r",stdin); ^ main.cpp:22:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("banana.out","w",stdout); ^ main.cpp:23:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ main.cpp:26:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v[i].x,&v[i].y); ^