Compilare: user.cpp: In function ‘void heapd()’: user.cpp:33:73: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses] if( v[ h[c] ] < v[ h[c+1] ] && modul( v[ h[c] ] - v[ h[c+1] ] ) > eps > eps && c+1 <=dh) ^ user.cpp: In function ‘int main()’: user.cpp:48:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&r,&p); ^ user.cpp:49:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lf",&a); ^ user.cpp:51:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lf",&v[i-1]); ^