Compilare: user.cpp: In function ‘void circuit()’: user.cpp:102:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(v.size() < maxim) { ^ user.cpp: In function ‘void citire()’: user.cpp:16:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:19:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &nod1, &nod2); ^ user.cpp: In function ‘int main()’: user.cpp:154:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plimbare.in", "r", stdin); ^ user.cpp:155:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plimbare.out", "w", stdout); ^