oj.uz

답안 #51658

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
51658 2018-06-19T18:06:39 Z gs13105 스탬프 수집 (JOI16_ho_t2) C++17
100 / 100
 7 ms 3840 KB 
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <tuple>
#include <iterator>

using namespace std;

char arr[100010];
long long J[100010];
long long JO[100010];
long long I[100010];
long long OI[100010];

int main()
{
    //freopen("in", "r", stdin);
    //freopen("out", "w", stdout);

    int n, i;
    scanf("%d%s", &n, arr + 1);

    for(i = 1; i <= n; i++)
        J[i] = (arr[i] == 'J' ? 1 : 0) + J[i - 1];
    for(i = 1; i <= n; i++)
        JO[i] = (arr[i] == 'O' ? J[i - 1] : 0) + JO[i - 1];

    for(i = n; i >= 1; i--)
        I[i] = (arr[i] == 'I' ? 1 : 0) + I[i + 1];
    for(i = n; i >= 1; i--)
        OI[i] = (arr[i] == 'O' ? I[i + 1] : 0) + OI[i + 1];

    long long JOI = 0;
    for(i = 1; i <= n; i++)
        if(arr[i] == 'I')
            JOI += JO[i - 1];

    long long res = 0;
    for(i = 0; i <= n; i++)
    {
        res = max(OI[i + 1], res); // J
        res = max(J[i] * I[i+1], res); // O
        res = max(JO[i], res); // I
    }

    res += JOI;

    printf("%lld\n", res);
    return 0;
}

Compilation message

2016_ho_t2.cpp: In function 'int main()':
2016_ho_t2.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%s", &n, arr + 1);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 3 ms 612 KB Output is correct
5 Correct 3 ms 612 KB Output is correct
6 Correct 2 ms 612 KB Output is correct
7 Correct 2 ms 612 KB Output is correct
8 Correct 2 ms 612 KB Output is correct
9 Correct 2 ms 652 KB Output is correct
10 Correct 2 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 2 ms 676 KB Output is correct
14 Correct 3 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 3 ms 612 KB Output is correct
5 Correct 3 ms 612 KB Output is correct
6 Correct 2 ms 612 KB Output is correct
7 Correct 2 ms 612 KB Output is correct
8 Correct 2 ms 612 KB Output is correct
9 Correct 2 ms 652 KB Output is correct
10 Correct 2 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 2 ms 676 KB Output is correct
14 Correct 3 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 2 ms 676 KB Output is correct
18 Correct 2 ms 740 KB Output is correct
19 Correct 3 ms 740 KB Output is correct
20 Correct 2 ms 740 KB Output is correct
21 Correct 2 ms 740 KB Output is correct
22 Correct 2 ms 740 KB Output is correct
23 Correct 2 ms 740 KB Output is correct
24 Correct 2 ms 740 KB Output is correct
25 Correct 2 ms 740 KB Output is correct
26 Correct 2 ms 740 KB Output is correct
27 Correct 2 ms 740 KB Output is correct
28 Correct 2 ms 740 KB Output is correct
29 Correct 2 ms 740 KB Output is correct
30 Correct 2 ms 740 KB Output is correct

Subtask #3
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 3 ms 612 KB Output is correct
5 Correct 3 ms 612 KB Output is correct
6 Correct 2 ms 612 KB Output is correct
7 Correct 2 ms 612 KB Output is correct
8 Correct 2 ms 612 KB Output is correct
9 Correct 2 ms 652 KB Output is correct
10 Correct 2 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 2 ms 676 KB Output is correct
14 Correct 3 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 2 ms 676 KB Output is correct
18 Correct 2 ms 740 KB Output is correct
19 Correct 3 ms 740 KB Output is correct
20 Correct 2 ms 740 KB Output is correct
21 Correct 2 ms 740 KB Output is correct
22 Correct 2 ms 740 KB Output is correct
23 Correct 2 ms 740 KB Output is correct
24 Correct 2 ms 740 KB Output is correct
25 Correct 2 ms 740 KB Output is correct
26 Correct 2 ms 740 KB Output is correct
27 Correct 2 ms 740 KB Output is correct
28 Correct 2 ms 740 KB Output is correct
29 Correct 2 ms 740 KB Output is correct
30 Correct 2 ms 740 KB Output is correct
31 Correct 5 ms 3836 KB Output is correct
32 Correct 5 ms 3836 KB Output is correct
33 Correct 6 ms 3840 KB Output is correct
34 Correct 6 ms 3840 KB Output is correct
35 Correct 6 ms 3840 KB Output is correct
36 Correct 7 ms 3840 KB Output is correct
37 Correct 7 ms 3840 KB Output is correct
38 Correct 7 ms 3840 KB Output is correct
39 Correct 7 ms 3840 KB Output is correct
40 Correct 7 ms 3840 KB Output is correct
41 Correct 6 ms 3840 KB Output is correct
42 Correct 7 ms 3840 KB Output is correct
43 Correct 6 ms 3840 KB Output is correct
44 Correct 6 ms 3840 KB Output is correct
45 Correct 6 ms 3840 KB Output is correct