#include <stdio.h>
#include <stdlib.h>

int main() {
	int i, sum, tab[100], count[5];

	srand(19702013);
	
	for (i=0; i<100; ++i) {
		tab[i] = rand() % 5;
	}

	for (i=0; i<5; ++i) {
		count[i] = 0;
	}
	
	sum = 0;
	for (i=0; i<100; ++i) {
		int x = tab[i];
		switch(x) {
			case 0: ++count[x]; break;
			case 1: 
			case 2: sum += x; break;
			default: printf("%d not taken into account\n", x);
		}
	}
	
	printf("sum = %d\n", sum);
	
	return 0;
}