Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:35:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:83:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < G[node].size(); j++) ^ user.cpp:92:13: warning: statement has no effect [-Wunused-value] for(conf; conf >= 0; conf--) ^ user.cpp:96:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Conf[conf].size(); i++) ^ user.cpp:106:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < G[node].size() && s != 0x3f3f3f3f; j++) ^ user.cpp:112:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < R[neighb].size(); k++) ^ user.cpp:125:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < R[node].size(); j++) ^ user.cpp: In function ‘void Read()’: user.cpp:18:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:22:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ user.cpp:26:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &M); ^ user.cpp:29:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &Road[i].first, &Road[i].second); ^ user.cpp:30:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &Cost[i]); ^ user.cpp: In function ‘int main()’: user.cpp:141:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj3.in", "r", stdin); ^ user.cpp:142:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj3.out", "w" ,stdout); ^