19194587
The code gives runtime error .
the line mod1[X%10].push_back({X/10,f,s}) is causing the problem , if u comment it out everything runs fine
How can this simple push_back() cause a RE (array index of mod1 vector are in bound)

  for(int s=0;s<=6;s++)
  for(int f = 0; (f+s)<=6;f++){
  int X = s*7 + f*4;
  mod1[X%10].push_back({X/10,f,s});
  }