Compilare: user.cpp: In function ‘void citire()’: user.cpp:31:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(x=0;x<n;x++) ^ user.cpp:38:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(x=1;x<=n;x++) ^ user.cpp: In function ‘void p2(int)’: user.cpp:64:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<n;i++) ^ user.cpp:68:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(o>ml[n-i-1][n-y]) ^ user.cpp:81:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(o>ml[n-i-1][n-y]) ^ user.cpp: In function ‘int main()’: user.cpp:98:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int x=st;x<=dr;x++) ^ user.cpp: In function ‘void citire()’: user.cpp:29:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i",&v); ^ user.cpp:30:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i %i %i",&n,&st,&dr); ^ user.cpp:35:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i",&ml[x][y]); ^