Submission #1312099

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Source Code Expand

#include <iostream>

#define llint long long unsigned int

int main(void){
  llint n, a, b;

  std::cin >> n >> a >> b;

  if(a>b){
    std::cout << 0 << std::endl;
    return 0;
  }else if(n==1 && a!=b){
    std::cout << 0 << std::endl;
    return 0;
  }

  llint minimum = (n-1)*a+b;
  llint maximum = a+(n-1)*b;
  std::cout << (maximum-minimum+1) << std::endl;
  
  return 0;
}

Submission Info

Judge Result