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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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//注意：这个数组的数字要先排好顺序，由小到大，否则只输出比现在大的全排列！
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int num[5]= {3,1,2,4,5};
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//快速排序
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sort(num, num+5);
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//输出全排列
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do {
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cout<<num[0]<<" "<<num[1]<<" "<<num[2]<<" "<<num[3]<<" "<<num[4]<<endl;
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} while(next_permutation(num,num+5));
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return 0;
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}
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