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我用结构体,然后排序,怎么不行呢牛人帮忙看看哈 #include <iostream> #include <algorithm> #include <string> #include <cstdlib> using namespace std; struct DNA{ string s; int num; }; struct DNA a[100]; int comp(const void *a,const void *b){ return ((struct DNA*)a)->num > ((struct DNA*)b)->num; } int main(){ string s; int num,n,m; cin>>n>>m; for(int i=0;i<m;i++){ num=0; cin>>a[i].s ; for(int j=0;j<n-1;j++){ for(int k=j+1;k<n;k++) if(a[i].s[j]>a[i].s[k]) num++; } a[i].num=num; } qsort(a,m,sizeof(a[0]),comp); for(int i=0;i<m;i++){ cout<<a[i].s<<endl; } return 0; } Followed by:
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