Compilare: main.cpp: In function 'int main()': main.cpp:79:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses] while(!revQ.empty() && -revQ.top().sat >= v[i].b || (!revQ.empty() && !exist[revQ.top().index])){ ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void read()': main.cpp:47:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ main.cpp:49:52: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &train[i].sat, &train[i].cap); ^ main.cpp:54:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &v[i].a, &v[i].b); ^ main.cpp: In function 'int main()': main.cpp:63:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.in", "r", stdin); ^ main.cpp:64:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri3.out", "w", stdout); ^