25 lines
309 B
C++
25 lines
309 B
C++
#include<iostream>
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using namespace std;
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int f(int n);
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int main(int argc, char const *argv[])
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{
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cout<<"input x:";
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int x;
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cin>>x;
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cout<<f(x)<<endl;
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system("pause");
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return 0;
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}
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int f(int n)
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{
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if(n==0)
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{
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return 1;
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}
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else
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{
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return n*f(n-1);
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}
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} |