#include <stdio.h>
#define ARRAY_SIZE 10
int main(void) {
int ndigit[ARRAY_SIZE];
int i;
char c;
for(i = 0; i < ARRAY_SIZE; ++i)
ndigit[i] = 0;
c = '2';
++ndigit[c - '0'];
c = '7';
++ndigit[c - '0'];
for(i = 0; i < ARRAY_SIZE; ++i)
printf("%d: %d\n", i
, ndigit
[i
]);
return 0;
}
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