#include <stdio.h>
#include <string.h>
int num;
int main() {
int i, j;
int cnt = 0;
char arr[100] = { 0 };
for (i = 'a'; i <= 'z'; i++) {
for (j = 0; j < 100; j++) {
if (arr[j] == i) {
arr[j] = j;
num = j;
break;
}
else cnt++;
}
if (cnt
== 100) printf("-1 "); num = 0;
cnt = 0;
}
return 0;
}
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