Submission #14176

#	Time	Username	Problem	Language	Result	Execution time	Memory
14176		heohyun0703	볼질 (OJUZ10_ballparade)	C++98	100 / 100	7 ms	1084 KiB

ballparade

#include <stdio.h>
int n;
int base[4]={0,};
int ball_num;
int ans=0;
int main()
{
    int a,i;
    scanf("%d",&n);
    ball_num = 0;
    for(i=1; i<=n; i++){
        scanf("%d",&a);
        if(a == 1){
            ball_num++;
        }
        else if(a == 3){
            ball_num++;
            if(base[3] == 1){
                base[3] = 0;
                ans++;
            }
            if(base[2] == 1){
                base[2] = 0;
                base[3] = 1;
            }
            if(base[1] == 1){
                base[1] = 0;
                base[2] = 1;
            }
        }
        if(ball_num == 4 || a == 2){
            ball_num = 0;
            if(base[3] == 1 && base[2] == 1 && base[1] == 1){
                base[3] = 0;
                ans++;
            }
            if(base[2] == 1 && base[1] == 1){
                base[2] = 0;
                base[3] = 1;
            }
            if(base[1] == 1){
                base[1] = 0;
                base[2] = 1;
            }
            base[1] = 1;
        }
    }
    printf("%d\n",ans);
    return 0;
}

• Subtask 1: 22 / 22
• Subtask 2: 25 / 25
• Subtask 3: 53 / 53