Compilare: user.cpp: In function ‘long long unsigned int transform(long long unsigned int)’: user.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x>(m + m - 1)) ^ user.cpp: In function ‘long long unsigned int row(long long unsigned int)’: user.cpp:20:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x <= m) ^ user.cpp: In function ‘void solve(long long unsigned int, long long unsigned int)’: user.cpp:44:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (destination == m + 1) ^ user.cpp: In function ‘int main()’: user.cpp:69:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aiacuhexagoane.in", "r", stdin); ^ user.cpp:70:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aiacuhexagoane.out", "w", stdout); ^ user.cpp:72:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:77:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &q); ^ user.cpp:84:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%llu %llu", &x, &y); ^