Compilare: user.cpp: In function ‘int main()’: user.cpp:2:68: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] int v[50001];int main(){int n,k,i,p,u;freopen("secv2.in","r",stdin);freopen("secv2.out","w",stdout);scanf("%d%d",&n,&k);for(i=1;i<=n;++i){scanf("%d",&v[i]);v[i]+=v[i-1];}for(i=k,u=k;i<=n;++i)if(v[i]>v[u])u=i;for(i=u-k,p=u-k;i>=0;--i)if(v[i]<v[p])p=i;printf("%d %d %d\n",p+1,u,v[u]-v[p]);return 0;} ^ user.cpp:2:100: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] int v[50001];int main(){int n,k,i,p,u;freopen("secv2.in","r",stdin);freopen("secv2.out","w",stdout);scanf("%d%d",&n,&k);for(i=1;i<=n;++i){scanf("%d",&v[i]);v[i]+=v[i-1];}for(i=k,u=k;i<=n;++i)if(v[i]>v[u])u=i;for(i=u-k,p=u-k;i>=0;--i)if(v[i]<v[p])p=i;printf("%d %d %d\n",p+1,u,v[u]-v[p]);return 0;} ^ user.cpp:2:120: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int v[50001];int main(){int n,k,i,p,u;freopen("secv2.in","r",stdin);freopen("secv2.out","w",stdout);scanf("%d%d",&n,&k);for(i=1;i<=n;++i){scanf("%d",&v[i]);v[i]+=v[i-1];}for(i=k,u=k;i<=n;++i)if(v[i]>v[u])u=i;for(i=u-k,p=u-k;i>=0;--i)if(v[i]<v[p])p=i;printf("%d %d %d\n",p+1,u,v[u]-v[p]);return 0;} ^ user.cpp:2:156: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int v[50001];int main(){int n,k,i,p,u;freopen("secv2.in","r",stdin);freopen("secv2.out","w",stdout);scanf("%d%d",&n,&k);for(i=1;i<=n;++i){scanf("%d",&v[i]);v[i]+=v[i-1];}for(i=k,u=k;i<=n;++i)if(v[i]>v[u])u=i;for(i=u-k,p=u-k;i>=0;--i)if(v[i]<v[p])p=i;printf("%d %d %d\n",p+1,u,v[u]-v[p]);return 0;} ^