#include<stdio.h>
int p[4];
int main(){
int n;
scanf("%d",&n);
int ans = 0;
for(int i=0, x, now = 0;i<n;i++){
scanf("%d",&x);
if(x == 3)ans += p[3], p[3] = p[2], p[2] = p[1], p[1] = 0;
if(x == 1 || x == 3){
now++;
}
if(x == 2 || now == 4){
ans += (p[3]&p[2]&p[1]);
p[3] |= (p[1]&p[2]);
p[2] |= p[1];
p[1] = 1, now = 0;
}
}
printf("%d",ans);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1084 KB |
Output is correct |
2 |
Correct |
0 ms |
1084 KB |
Output is correct |
3 |
Correct |
0 ms |
1084 KB |
Output is correct |
4 |
Correct |
0 ms |
1084 KB |
Output is correct |
5 |
Correct |
4 ms |
1084 KB |
Output is correct |
6 |
Correct |
0 ms |
1084 KB |
Output is correct |
7 |
Correct |
0 ms |
1084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1084 KB |
Output is correct |
2 |
Correct |
0 ms |
1084 KB |
Output is correct |
3 |
Correct |
4 ms |
1084 KB |
Output is correct |
4 |
Correct |
0 ms |
1084 KB |
Output is correct |
5 |
Correct |
0 ms |
1084 KB |
Output is correct |
6 |
Correct |
0 ms |
1084 KB |
Output is correct |
7 |
Correct |
0 ms |
1084 KB |
Output is correct |
8 |
Correct |
3 ms |
1084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
1084 KB |
Output is correct |
2 |
Correct |
7 ms |
1084 KB |
Output is correct |
3 |
Correct |
0 ms |
1084 KB |
Output is correct |
4 |
Correct |
0 ms |
1084 KB |
Output is correct |
5 |
Correct |
0 ms |
1084 KB |
Output is correct |
6 |
Correct |
0 ms |
1084 KB |
Output is correct |
7 |
Correct |
0 ms |
1084 KB |
Output is correct |
8 |
Correct |
5 ms |
1084 KB |
Output is correct |
9 |
Correct |
6 ms |
1084 KB |
Output is correct |
10 |
Correct |
9 ms |
1084 KB |
Output is correct |
11 |
Correct |
5 ms |
1084 KB |
Output is correct |
12 |
Correct |
4 ms |
1084 KB |
Output is correct |
13 |
Correct |
6 ms |
1084 KB |
Output is correct |
14 |
Correct |
0 ms |
1084 KB |
Output is correct |
15 |
Correct |
5 ms |
1084 KB |
Output is correct |