Compilare: user.cpp: In function ‘int main()’: user.cpp:13:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=k;i++){ ^ user.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=m;i++){ ^ user.cpp:33:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<nre[q[p]];i++){ ^ user.cpp:44:108: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(c[a[q[p]][i].first]=c[q[p]]+a[q[p]][i].second && parinte[a[q[p]][i].first]>parinte[q[p]]){ ^ user.cpp:62:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=k;i++) ^ user.cpp:64:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^