Compilare: user.cpp: In function ‘bool cupleaza(int)’: user.cpp:17:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<g[nod].size();++i) ^ user.cpp:24:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<g[nod].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:51:33: warning: unused variable ‘maxi’ [-Wunused-variable] scanf("%d %d", &n, &m); int maxi=0; int crt=0; ^ user.cpp:51:45: warning: unused variable ‘crt’ [-Wunused-variable] scanf("%d %d", &n, &m); int maxi=0; int crt=0; ^ user.cpp:48:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("felinare.in","r",stdin); ^ user.cpp:49:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("felinare.out","w",stdout); ^ user.cpp:51:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); int maxi=0; int crt=0; ^ user.cpp:54:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^