#include <cstdio>
#include <algorithm>
using namespace std;
bool run[4], prev[4];
int n, score, cnt;
void mov(){
cnt=0;
for(int j=0;j<4;++j) prev[j]=run[j];
if(prev[3]){
if(prev[2]){
if(prev[1]){
++score;
run[3]=run[2]=run[1]=run[0]=true;
}
else run[1]=true;
}
else run[2]=true;
}
else{
if(prev[2] && prev[1]) run[3]=true;
else if(prev[1]) run[2]=true;
else run[1]=true;
}
}
int main()
{
int i,th;
scanf("%d",&n);
run[0]=true;
for(i=0;i<n;++i){
scanf("%d",&th);
switch(th){
case 1:
if(++cnt==4) mov();
break;
case 2:
mov();
break;
case 3:
++cnt;
if(run[3]) ++score;
run[3]=run[2];
run[2]=run[1];
run[1]=false;
if(cnt==4){
cnt=0;
run[1]=run[0];
run[0]=true;
}
break;
}
/*
printf("%d : ",th);
for(int j=0;j<4;++j){
if(run[j]) printf("%d ",j);
else printf(" ");
}
printf("\n");
*/
}
printf("%d",score);
return 0;
}
# |
Verdict |
Execution time |
Memory |
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 |
0 ms |
1084 KB |
Output is correct |
6 |
Correct |
4 ms |
1084 KB |
Output is correct |
7 |
Correct |
0 ms |
1084 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
1084 KB |
Output is correct |
2 |
Correct |
0 ms |
1084 KB |
Output is correct |
3 |
Incorrect |
0 ms |
1084 KB |
Output isn't correct |
4 |
Correct |
7 ms |
1084 KB |
Output is correct |
5 |
Correct |
0 ms |
1084 KB |
Output is correct |
6 |
Correct |
7 ms |
1084 KB |
Output is correct |
7 |
Correct |
0 ms |
1084 KB |
Output is correct |
8 |
Correct |
0 ms |
1084 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
5 ms |
1084 KB |
Output is correct |
6 |
Correct |
5 ms |
1084 KB |
Output is correct |
7 |
Correct |
5 ms |
1084 KB |
Output is correct |
8 |
Correct |
7 ms |
1084 KB |
Output is correct |
9 |
Correct |
7 ms |
1084 KB |
Output is correct |
10 |
Correct |
0 ms |
1084 KB |
Output is correct |
11 |
Correct |
3 ms |
1084 KB |
Output is correct |
12 |
Correct |
5 ms |
1084 KB |
Output is correct |
13 |
Correct |
0 ms |
1084 KB |
Output is correct |
14 |
Correct |
1 ms |
1084 KB |
Output is correct |
15 |
Correct |
6 ms |
1084 KB |
Output is correct |