정올 153 : 배열1-형성평가4

My Solution

#include<stdio.h>
int main (void){
    int num[100];
    int i=0,count=0;
    while(1){
        scanf("%d", &num[i]);
        if(num[i]==-1){
            break;
        }
        i++;
        count++;
    }
    if(count<3){
        for(i=0;i<=count-1;i++){
            printf("%d ",num[i]);
        }
    }
    else{
        for(i=count-3;i<=count-1;i++){
            printf("%d ",num[i]);
        }
    }
    return 0;
}