http://poj.org/problem?id=2603 #include<stdio.h> #include<stdlib.h> #include<string.h> int main() { int x,i,n=10;int a[10002];a[1]=0;memset(a,0,sizeof(a)); while(n--) { scanf("%d",&x); for(i=2;x!=1;i++) { while(x%i==0&&x!=1) { a[i]++;x/=i; } if(x==1) break; } } x=1; for(i=2;i<10000;i++) { if(a[i]!=0) { x=x*(1+a[i])%10; } } printf("%dn",x); return 0; }
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