删数问题

PRoblem Description

Input

Output

Example Input

178543  4
Example Output
13
Hint
 
Author
他强任他强，我吃我三狼。
说实话，这题做的头皮发麻。
01
#include<stdio.h>
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#include<string.h>
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int main()
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{
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    int i, s, len, n;
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    char a[100];
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    while(scanf("%s", a) != EOF)
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    {
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        n = 0;
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        scanf("%d", &s);
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        while(s > 0)
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        {
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            i = 0;
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            len = strlen(a);
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            while(i < len && a[i] <= a[i+1])
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                i++;
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            while(i < len)
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            {
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                a[i] = a[i+1];
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                i++;
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            }
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            s--;
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        }
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        len = strlen(a);
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        while((a[n] == '0') && (n < len)) n++;
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        if(n == len)
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            printf("0/n");
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        else
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        {
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            for(i = n; i < strlen(a); i++)
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            {
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                printf("%c", a[i]);
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            }
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            printf("/n");
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        }
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    }
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    return 0;
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}