Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:20:20: error: ‘N’ was not declared in this scope for(i = 1; i < N; i++) ^ user.cpp:33:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < urm[q.front()].size(); i++) { ^ user.cpp:40:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < sol.size(); i++) ^ user.cpp:15:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp:16:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("semne3.in", "r", stdin); ^ user.cpp:17:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("semne3.out", "w", stdout); ^ user.cpp:18:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ user.cpp:19:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(c + 1); ^