Compilare: main.cpp: In function 'int main()': main.cpp:14:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rj.in","r",stdin); ^ main.cpp:15:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rj.out","w",stdout); ^ main.cpp:17:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&n,&m); ^ main.cpp:100:39: warning: 'miny' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<mini+1<<" "<<minx<<" "<<miny; ^ main.cpp:100:30: warning: 'minx' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<mini+1<<" "<<minx<<" "<<miny; ^~~ main.cpp:72:17: warning: 'yj' may be used uninitialized in this function [-Wmaybe-uninitialized] coada[inc].y=yj; ~~~~~~~~~~~~^~~ main.cpp:71:17: warning: 'xj' may be used uninitialized in this function [-Wmaybe-uninitialized] coada[inc].x=xj; ~~~~~~~~~~~~^~~ main.cpp:52:17: warning: 'yr' may be used uninitialized in this function [-Wmaybe-uninitialized] coada[inc].y=yr; ~~~~~~~~~~~~^~~ main.cpp:51:17: warning: 'xr' may be used uninitialized in this function [-Wmaybe-uninitialized] coada[inc].x=xr; ~~~~~~~~~~~~^~~