Compilare: user.cpp: In function ‘void ciclu(int, int, int)’: user.cpp:19:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[0][fiu] == i) ^ user.cpp:26:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(v[1][fiu] == i) ^ user.cpp: In function ‘int main()’: user.cpp:41:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:46:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:76:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^