Submission #16617

#	Time	Username	Problem	Language	Result	Execution time	Memory
16617		eaststar	볼질 (OJUZ10_ballparade)	C++14	100 / 100	8 ms	1084 KiB

ballparade

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

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