1038.Recover the Smallest Number (30)

2019-11-10 17:54:55

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pat-al-1038

2017-02-08

参考了：1038. Recover the Smallest Number (30)-PAT甲级真题string中erase的用法：C++中string erase函数的使用(转载)/** * pat-al-1038 * 2017-02-08 * Cpp version * Author: fengLian_s */#include<string>#include<iostream>#include<algorithm>using namespace std;bool cmp(string a, string b){ return a+b < b+a;}int main(){ freopen("in.txt", "r", stdin); int n; scanf("%d", &n); string str[10002]; for(int i = 0;i < n;i++) { cin >> str[i]; } sort(str, str+n, cmp); string s; for(int i = 0;i < n;i++) { s += str[i]; } while(s.length() != 0 && s[0] == '0') s.erase(s.begin()); if(s.length() == 0) cout << 0; else cout << s; putchar('/n');}

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