Compilare: user.cpp: In function ‘int main()’: user.cpp:121:21: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] for (int t = 1, p = -1; q >= 1; t += n, q -= n, p = -1) { ^ user.cpp:101:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("meow.in" , "r", stdin ); ^ user.cpp:102:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("meow.out", "w", stdout); ^ user.cpp:105:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &l, &q); ^ user.cpp:108:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &fth[i]); ^ user.cpp:116:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &ant[i]); ^ user.cpp:123:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nxt[i]); ^