Compilare: main.cpp: In function 'int main()': main.cpp:74:14: warning: statement has no effect [-Wunused-value] for(i; i<=n; i++) ^ main.cpp: In function 'bool cmp(blat, blat)': main.cpp:41:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:45:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rafturi.in", "r", stdin); ^ main.cpp:46:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rafturi.out", "w", stdout); ^ main.cpp:49:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &c, &n); ^ main.cpp:52:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b); ^