Compilare: user.cpp: In function ‘void inchidere(int, int)’: user.cpp:14:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g_init[from].size(); ++ k) { ^ user.cpp: In function ‘void bfs()’: user.cpp:36:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[u1].size(); ++ k) { ^ user.cpp: In function ‘int dfs(int)’: user.cpp:51:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < g[u1].size(); ++ k) { ^ user.cpp:57:58: warning: suggest parentheses around assignment used as truth value [-Wparentheses] } else if(dist[u2] = dist[u1] + 1 && viz[u2] == 0){ ^ user.cpp: In function ‘int main()’: user.cpp:85:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drumuri2.in", "r", stdin); ^ user.cpp:86:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drumuri2.out", "w", stdout); ^ user.cpp:89:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:93:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^