标签:除法 http while while循环 splay for gif start round
紫书P182
直接枚举 0~9 的全排列会超时,枚举fghij就可以了,计算出 abcde ,这里有一个新的函数,也可以不用咯,把每一位数据提取出来,while循环可以做到,这里的新的函数是,sprintf(buf,"%5d%5d",abcde,fghij); 格式化提取,把abcde,fghij每一位提取到字符串buf中,不足5位的补0。然后看每一个位是否都有。都有就是一个0~9的全排列。
/*#include <stdio.h> #include <algorithm> using namespace std; int main() { int n; int a[10] = {0,1,2,3,4,5,6,7,8,9}; while(scanf("%d",&n),n) { bool flag = false; do { int s = 0; for(int i=0;i<5;i++) { s = s*10 + a[i]; } int t = 0; for(int i=5;i<10;i++) { t = t*10 + a[i]; } if(s%t==0&&s/t==n) { flag = 1; printf("%d%d%d%d%d / %d%d%d%d%d = %d\n",a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],n); } }while(next_permutation(a,a+10)); if(!flag) printf("There are no solutions for %d.\n",n); } return 0; } */ #include <cstdio> #include <cstring> #include <algorithm> using namespace std; int main() { //freopen("in.txt","r",stdin); int n; int kase = 0; char buf[99]; while(scanf("%d",&n),n) { if(kase++) printf("\n"); int cnt = 0; for(int fghij = 1234;;fghij++) { int abcde = fghij*n; sprintf(buf,"%05d%05d",abcde,fghij); if(strlen(buf)>10) break; sort(buf,buf+10); bool ok = true; for(int i=0;i<10;i++) { if(buf[i]!=‘0‘+i) ok = false; } if(ok) { cnt++; printf("%05d / %05d = %d\n",abcde,fghij,n); } } if(!cnt) printf("There are no solutions for %d.\n",n); } return 0; }
标签:除法 http while while循环 splay for gif start round
原文地址:http://www.cnblogs.com/TreeDream/p/6034888.html