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#include<bits/stdc++.h>
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using namespace std;
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/*
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֪ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>STL ȫ<EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡm<EFBFBD><EFBFBD>m<EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>m<EFBFBD><EFBFBD>Ԫ<EFBFBD>ص<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
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<EFBFBD><EFBFBD>m=nʱ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ôȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊn!<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲο<EFBFBD><EFBFBD><EFBFBD>
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https://www.cnblogs.com/aiguona/p/7304945.html
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*/
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using namespace std;
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int main() {
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int arr[] = {3, 2, 1};
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cout << "<EFBFBD><EFBFBD>prev_permutation<EFBFBD><EFBFBD>3 2 1<><31>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>" << endl;
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do {
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cout << arr[0] << ' ' << arr[1] << ' ' << arr[2] << '\n';
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} while (prev_permutation(arr, arr + 3)); ///<2F><>ȡ<EFBFBD><C8A1>һ<EFBFBD><D2BB><EFBFBD>ϴ<EFBFBD><CFB4>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>3<EFBFBD><33>Ϊ2<CEAA><32>ֻ<EFBFBD><D6BB>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>
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int arr1[] = {1, 2, 3};
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cout << "<EFBFBD><EFBFBD>next_permutation<EFBFBD><EFBFBD>1 2 3<><33>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>" << endl;
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do {
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cout << arr1[0] << ' ' << arr1[1] << ' ' << arr1[2] << '\n';
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} while (next_permutation(arr1, arr1 + 3)); ///<2F><>ȡ<EFBFBD><C8A1>һ<EFBFBD><D2BB><EFBFBD>ϴ<EFBFBD><CFB4>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>3<EFBFBD><33>Ϊ2<CEAA><32>ֻ<EFBFBD><D6BB>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>
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///ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>ҪʱҪ<CAB1><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return 0;
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}
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