oj.uz

Submission #233712

# Submission time Handle Problem Language Result Execution time Memory
233712 2020-05-21T13:28:55 Z duality JJOOII 2 (JOI20_ho_t2) C++11
100 / 100
 28 ms 5504 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;

char S[200000];
int pre[3][200001],n[3][200001];
int main() {
    int i,j;
    int N,K;
    scanf("%d %d",&N,&K);
    for (i = 0; i < N; i++) {
        scanf(" %c",&S[i]);
        for (j = 0; j < 3; j++) pre[j][i+1] = pre[j][i];
        if (S[i] == 'J') pre[0][i+1]++;
        else if (S[i] == 'O') pre[1][i+1]++;
        else pre[2][i+1]++;
    }

    int ans = 1e9;
    j = 0;
    for (i = 0; i < N; i++) {
        while (pre[0][i+1]-pre[0][j] >= K) j++;
        n[0][i] = j-1;
    }
    j = 0;
    for (i = 0; i < N; i++) {
        while (pre[1][i+1]-pre[1][j] >= K) j++;
        n[1][i] = j-1;
    }
    j = 0;
    for (i = 0; i < N; i++) {
        while (pre[2][i+1]-pre[2][j] >= K) j++;
        n[2][i] = j-1;
    }
    for (i = 0; i < N; i++) {
        int u = n[2][i]-1;
        if (u >= 0) u = n[1][u]-1;
        else u = -2;
        if (u >= 0) u = n[0][u]-1;
        else u = -2;
        if (u != -2) ans = min(ans,i-u);
    }
    if (ans == 1e9) printf("-1\n");
    else printf("%d\n",ans-3*K);

    return 0;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&N,&K);
     ~~~~~^~~~~~~~~~~~~~~
ho_t2.cpp:17:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c",&S[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 512 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 512 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 23 ms 5120 KB Output is correct
37 Correct 25 ms 5376 KB Output is correct
38 Correct 25 ms 5376 KB Output is correct
39 Correct 26 ms 5376 KB Output is correct
40 Correct 25 ms 5504 KB Output is correct
41 Correct 25 ms 5376 KB Output is correct
42 Correct 26 ms 5372 KB Output is correct
43 Correct 17 ms 3456 KB Output is correct
44 Correct 22 ms 4224 KB Output is correct
45 Correct 28 ms 5368 KB Output is correct
46 Correct 24 ms 5376 KB Output is correct
47 Correct 24 ms 5376 KB Output is correct
48 Correct 24 ms 5376 KB Output is correct
49 Correct 18 ms 3712 KB Output is correct
50 Correct 24 ms 5376 KB Output is correct
51 Correct 24 ms 5376 KB Output is correct
52 Correct 21 ms 5248 KB Output is correct
53 Correct 21 ms 5376 KB Output is correct
54 Correct 20 ms 5376 KB Output is correct
55 Correct 19 ms 5376 KB Output is correct
56 Correct 20 ms 5376 KB Output is correct