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itoa不能用吗?为什么会CE?#include<string.h>
#include<stdio.h>
#include<stdlib.h>
int t,n,s,p,l;
char st[15];
int main()
{
scanf("%d",&t);
while (t>0)
{
t--;
scanf("%d",&n);
p=0;
s=0;
while (n>0)
{
p++;
itoa(p,st,10);
l=strlen(st);
s+=l;
n-=s;
}
n+=s;
p=0;
s=0;
while (n>0)
{
p++;
itoa(p,st,10);
l=strlen(st);
n-=l;
}
n+=l;
printf("%c\n",st[n-1]);
}
return 0;
}
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