Submission #13964

#	Time	Username	Problem	Language	Result	Execution time	Memory
13964		gs14004	볼질 (OJUZ10_ballparade)	C++14	100 / 100	7 ms	1084 KiB

ballparade

#include <cstdio>

int a[4];
int ball_count, ret;

void BALL(){
    ball_count++;
    if(ball_count == 4){
        ball_count = 0;
        if(a[1] && a[2] && a[3]){
            ret++;
        }
        else if(a[1] && a[2]){
            a[3] = 1;
        }
        else if(a[1]){
            a[2] = 1;
        }
        a[1] = 1;
    }
}
int main(){
    int n;
    scanf("%d",&n);
    while (n--) {
        int t;
        scanf("%d",&t);
        if(t == 1){
            BALL();
        }
        else if(t == 2){
            ball_count = 0;
            if(a[1] && a[2] && a[3]){
                ret++;
            }
            else if(a[1] && a[2]){
                a[3] = 1;
            }
            else if(a[1]){
                a[2] = 1;
            }
            a[1] = 1;
        }
        else{
            if(a[3]) ret++;
            a[3] = a[2];
            a[2] = a[1];
            a[1] = 0;
            BALL();
        }
    }
    printf("%d",ret);
}

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