标签:io ar for sp amp c as poj r
//给出置换了s次后的序列,求原序列 # include <stdio.h> # include <algorithm> # include <string.h> using namespace std; int main() { int n,s,t,s1,i,cot; int a[1010],b[1010],c[1010]; while(~scanf("%d%d",&n,&s)) { for(i=1; i<=n; i++) { scanf("%d",&a[i]); b[i]=a[i]; c[i]=a[i]; } cot=0; while(1)//求循环节 { cot++; for(i=1; i<=n; i++) b[i]=c[c[i]]; for(i=1; i<=n; i++) { if(a[i]!=b[i]) break; } if(i>n) break; for(i=1; i<=n; i++) c[i]=b[i]; } s%=cot; s=cot-s; while(s--) { for(i=1; i<=n; i++) b[i]=a[a[i]]; for(i=1; i<=n; i++) a[i]=b[i]; } for(i=1; i<=n; i++) printf("%d\n",b[i]); } return 0; }
标签:io ar for sp amp c as poj r
原文地址:http://blog.csdn.net/lp_opai/article/details/39010875