zoj 2051 Buffer Manager

#include<iostream>#include<cstdio>using namespace std;enum {    SIZ = 100004,};int N, K;char dat[SIZ];void fun(){    int s = 0, e;    int sum = 0, ans = K*9+1, L=-1;    for (e=0; e<N; ++e){        if (dat[e] == '*'){ s = e + 1; sum = 0; continue;        }        sum += dat[e] - '0';        if (e-s+1>=K){ if (sum < ans){     ans = sum;     L = s; } sum -= dat[s] - '0'; ++s;        }    }    ++L;    printf("%dn", L);}void readIn(){    scanf("%d%d ", &N, &K);    for (int i = 0; i<N; i+=80){        scanf("%s", &dat[i]);    }}int main(){    int bn;    scanf("%d", &bn);    while(bn-- > 0){        readIn();        fun();        if (bn) printf("n");    }    return 0;}