oj.uz

답안 #156109

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
156109 2019-10-03T13:12:30 Z karma JOIOJI (JOI14_joioji) C++14
100 / 100
 45 ms 6216 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define FileName      "test"
#define ll            long long
#define pb            emplace_back
#define mp            make_pair
#define fi            first
#define se            second

using namespace std;
using namespace __gnu_pbds;

typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ord_set;
typedef pair<int, int> pii;

const int N = int(1e3) + 2;

int n, curi, curj, curo, res = 0;
pii cur;
string s;
map<pii, int> mmap;

void Enter() {
     cin >> n >> s; curi = curj = curo = 0;
     cur = mp(0, 0); mmap[cur] = -1;
     for(int i = 0; i < n; ++i) {
        if(s[i] == 'O') ++curo;
        else if(s[i] == 'J') ++curj;
        else ++curi;
        cur = mp(curo - curi, curj - curo);
        if(mmap.count(cur)) {
            res = max(res, i - mmap[cur]);
            //cout << mmap[cur] << ' ' << i << '\n';
        } else mmap[cur] = i;
     }
     cout << res;
}

void Solve() {

}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    if(fopen(FileName".inp", "r")) {
       freopen(FileName".inp", "r", stdin);
       freopen(FileName".out", "w", stdout);
    }

    Enter(), Solve();

    return 0;
}

Compilation message

joioji.cpp: In function 'int main()':
joioji.cpp:49:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
        freopen(FileName".inp", "r", stdin);
        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
joioji.cpp:50:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
        freopen(FileName".out", "w", stdout);
        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 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 296 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 504 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 376 KB Output is correct
3 Correct 3 ms 376 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 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 3 ms 504 KB Output is correct
10 Correct 3 ms 440 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 8 ms 912 KB Output is correct
3 Correct 13 ms 1400 KB Output is correct
4 Correct 24 ms 2172 KB Output is correct
5 Correct 36 ms 3332 KB Output is correct
6 Correct 44 ms 3500 KB Output is correct
7 Correct 45 ms 3956 KB Output is correct
8 Correct 43 ms 3328 KB Output is correct
9 Correct 45 ms 3588 KB Output is correct
10 Correct 44 ms 3332 KB Output is correct
11 Correct 40 ms 5124 KB Output is correct
12 Correct 25 ms 2180 KB Output is correct
13 Correct 25 ms 1412 KB Output is correct
14 Correct 39 ms 6216 KB Output is correct
15 Correct 29 ms 1156 KB Output is correct