Compilare: user.cpp: In function ‘int main()’: user.cpp:17:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < n; i += 8,++cont) { ^ user.cpp:40:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < m; ++i) { ^ user.cpp:11:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.in", "r", stdin); ^ user.cpp:12:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.out", "w", stdout); ^ user.cpp:13:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ /tmp/cc4Gt0vR.o: In function `main': user.cpp:(.text.startup+0x56): warning: the `gets' function is dangerous and should not be used.