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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 s = 0;
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// 1!+2!+3!+4!+5!
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int f = 1;
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for (int i = 1; i <= 5; i++) {
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f *= i; // 阶乘
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s += f;
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}
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cout << s << endl;
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return 0;
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} |
