Compilare: user.cpp: In function ‘int main()’: user.cpp:33:24: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(i&(1<<j)!=0) ^ user.cpp:38:34: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if( (i&(1<<k)!=0) && (k!=j) ) ^ user.cpp:17:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&m); ^ user.cpp:23:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&x,&y,&c); ^