Compilare: user.cpp: In function ‘int main()’: user.cpp:11:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=p; i++) f >> V[i], s+=V[i]; g << s << '\n'; ^ user.cpp:12:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=n; i++) fr[i] = V[i], tt[i] = i; ^ user.cpp:16:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=p; i++) ^ user.cpp:19:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=1; k<=p; k++) ^ user.cpp:23:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=1; k<=p; k++) ^ user.cpp:37:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j != p+n) ^ user.cpp:40:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=n; i++) ^ user.cpp:44:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=n; i++) ^ user.cpp:47:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(fr[i] == 0 && j != p+n) ^ user.cpp:52:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == p+n) sol = i; ^