Compilare: main.cpp: In function 'int main()': main.cpp:14:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&l); ^ main.cpp:17:68: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lf%lf%lf%lf%d",&a[i],&b[i],&k[i],&q[i],&v[i]); ^ main.cpp:45:21: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized] s[++sol]=mid; ~~~~~~~~^~~~