Submission #1691020

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)
#define CLR(mat) memset(mat, 0, sizeof(mat))
typedef unsigned long long ll;


int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	ll a,b,x,ans=0ULL,c;
	cin >> a >> b >> x;

	if(a==0)c=0;
	else c = (a-1)/x+1;
	cout << b / x + 1 - c << endl; 
	return 0;
}

Submission Info

Judge Result