답안 #156031

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
156031	2019-10-03T00:58:00 Z	HungAnhGoldIBO2020	JOIOJI (JOI14_joioji)	C++14	100 / 100	54 ms	9220 KB

joioji

#include<iostream>
#include<map>
#define sum sum1
using namespace std;
const int N=2e5+2;
int sum[N][5];
map<pair<int,int>,int> min1; 
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n,i,j,k,l,ans=0;
	string s;
	cin>>n>>s;
	min1[{0,0}]=0;
	for(i=0;i<n;i++){
		for(j=1;j<=3;j++){
			sum[1+i][j]=sum[i][j];
		}
		if(s[i]=='J'){
			sum[i+1][1]++;
		}
		if(s[i]=='O'){
			sum[i+1][2]++;
		}
		if(s[i]=='I'){
			sum[i+1][3]++;
		}
		if(min1[{sum1[i+1][1]-sum1[i+1][2],sum1[i+1][2]-sum[i+1][3]}]==0){
			if(sum1[i+1][1]-sum1[i+1][2]==0&&sum1[i+1][2]-sum[i+1][3]==0){
			}
			else{
				min1[{sum1[i+1][1]-sum1[i+1][2],sum1[i+1][2]-sum[i+1][3]}]=i+1;
			}
		}
		ans=max(ans,i+1-min1[{sum1[i+1][1]-sum1[i+1][2],sum1[i+1][2]-sum[i+1][3]}]);
	}
	cout<<ans;
}

Compilation message

joioji.cpp: In function 'int main()':
joioji.cpp:11:12: warning: unused variable 'k' [-Wunused-variable]
  int n,i,j,k,l,ans=0;
            ^
joioji.cpp:11:14: warning: unused variable 'l' [-Wunused-variable]
  int n,i,j,k,l,ans=0;
              ^

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct

Subtask #2

15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	504 KB	Output is correct
3	Correct	3 ms	504 KB	Output is correct
4	Correct	3 ms	504 KB	Output is correct
5	Correct	3 ms	504 KB	Output is correct
6	Correct	2 ms	504 KB	Output is correct
7	Correct	2 ms	504 KB	Output is correct
8	Correct	3 ms	376 KB	Output is correct
9	Correct	3 ms	504 KB	Output is correct
10	Correct	3 ms	504 KB	Output is correct

Subtask #3

80.0 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	764 KB	Output is correct
2	Correct	9 ms	1528 KB	Output is correct
3	Correct	15 ms	2424 KB	Output is correct
4	Correct	27 ms	4216 KB	Output is correct
5	Correct	42 ms	6276 KB	Output is correct
6	Correct	52 ms	7348 KB	Output is correct
7	Correct	54 ms	7940 KB	Output is correct
8	Correct	51 ms	7300 KB	Output is correct
9	Correct	52 ms	7556 KB	Output is correct
10	Correct	51 ms	7300 KB	Output is correct
11	Correct	48 ms	8452 KB	Output is correct
12	Correct	40 ms	5892 KB	Output is correct
13	Correct	31 ms	5252 KB	Output is correct
14	Correct	42 ms	9220 KB	Output is correct
15	Correct	22 ms	5124 KB	Output is correct