Submission #1854738

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Source Code Expand

#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <bitset>
#include <cstdio>
#include <vector>
#include <cstdlib>
#include <numeric>
#include <sstream>
#include <iostream>
#include <algorithm>
using namespace std;

int main(){
	int a, b, c, d;
	cin >> a >> b >> c >> d;
	int k, l;
	if(b < c){
		cout << 0 << endl;
		return 0; 
	}
	if(a < c) k = c;
	else k = a;
	if(b < d) l = b; 
	else l = d;
	if((l - k) <= 0){
		cout << 0 << endl;
		return 0;
	}
	cout << l - k << endl;
	return 0;
} 

Submission Info

Judge Result