13 lines
258 B
C++
13 lines
258 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int n, l, r;
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cin >> n >> l >> r;
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if (l / n == r / n) // 是不是在同一个周期内
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cout << r % n << endl;
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else
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cout << n - 1 << endl;
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return 0;
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}
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