60pts求调
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60pts求调
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NullPointerExpection楼主2024/7/19 11:36
#include <bits/stdc++.h>
using namespace std;

long long x, y;
int main() {
	cin >> x >> y;
	cout << ceil((y - x) / 2.0);
	return 0;
}
2024/7/19 11:36
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