>120
#include <stdio.h>
int main(void)
{
int score[20] = { 0, 10, 10, 20, 20, 30, 30, 40, 40, 50, 50, 60, 60, 70, 70, 80, 80, 90, 90, 100};
int rank[11] = {0};
int i, j;
//for(i=0; i<20; i++) rank[score[i]/10]++;
for(i=0; i<11; i++) {
for(j=0; j<20; j++) {
if(score[j]>=i*10 && score[j]<(i+1)*10) rank[i]++;
}
}
for(i=0; i<10; i++) printf("%2d-%2d:%2d\n", i*10, i*10+9, rank[i]);
printf(" 100:%2d\n", rank[i]);
return 0;
}