hdu 2106 decimal system （数学）

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//没想到还可以这样来，用两个字符把括号吸收，#include"stdio.h"#include"math.h"int main(){int k,n;int i;char s1,s2;int a[110],b[110];int sum;while(scanf("%d",&n)!=EOF&&n){sum=0;for(i=0;i<n;i++){scanf("%d",&a[i]);scanf("%c",&s1);scanf("%d",&b[i]);scanf("%c",&s2);}for(i=0;i<n;i++){k=0;while(a[i]){sum+=(a[i])*pow(b[i],k);a[i]/=10;k++;}}printf("%d\n",sum);}return 0;}