7 lines
174 B
C++
7 lines
174 B
C++
#include<bits/stdc++.h>
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using namespace std;
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long long x, y;
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int main() {
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scanf("%lld%lld", &x, &y);
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printf("%lld\n", (long long) ceil((y - x) / (long double)2.0));
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} |