Submission #16615

#	Time	Username	Problem	Language	Result	Execution time	Memory
16615		eaststar	볼질 (OJUZ10_ballparade)	C++14	0 / 100	9 ms	1084 KiB

ballparade

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

• Subtask 1: 0 / 22
• Subtask 2: 0 / 25
• Subtask 3: 0 / 53