Compilare: main.cpp: In function 'int32_t main()': main.cpp:45:24: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(mp[0][i]='0') ^ main.cpp:49:24: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(mp[1][i]='0') ^ main.cpp:38:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grea.in","r",stdin); ^ main.cpp:39:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grea.out","w",stdout); ^