Compilare: user.cpp: In function ‘bool diferit(int, int)’: user.cpp:106:23: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return vizs[nod1] && vizn[nod2] || vizs[nod2] && vizn[nod1]; ^ user.cpp: In function ‘void citire()’: user.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:23:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &nod1, &nod2, &cap); ^ user.cpp: In function ‘int main()’: user.cpp:131:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("critice.in", "r", stdin); ^ user.cpp:132:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("critice.out", "w", stdout); ^