oj.uz

Submission #818165

# Submission time Handle Problem Language Result Execution time Memory
818165 2023-08-10T02:58:49 Z PixelCat Mutating DNA (IOI21_dna) C++17
100 / 100
 34 ms 6948 KB 
#include "dna.h"

#ifdef NYAOWO
#include "grader.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define sz(x) ((int)x.size())
#define all(x) x.begin(), x.end()
#define eb emplace_back
// #define int LL
using namespace std;
using i32 = int32_t;
using LL = long long;
using pii = pair<int, int>;

namespace {

const int MAXN = 100'000;

int n;
int pre[3][3][MAXN + 10];
int ca[3], cb[3];
int cnt[3][3];

int ch2int(char ch) {
    if(ch == 'A') return 0;
    if(ch == 'T') return 1;
    if(ch == 'C') return 2;
    assert(false);
    return -1;
}

void _init(string a, string b) {
    n = sz(a);
    For(c1, 0, 2) For(c2, 0, 2) pre[c1][c2][0] = 0;
    For(i, 1, n) {
        For(c1, 0, 2) For(c2, 0, 2) pre[c1][c2][i] = pre[c1][c2][i - 1];
        int cha = ch2int(a[i - 1]);
        int chb = ch2int(b[i - 1]);
        pre[cha][chb][i]++;
    }
}

int _get_distance(int l, int r) {
    memset(ca, 0, sizeof(ca));
    memset(cb, 0, sizeof(cb));
    For(c1, 0, 2) For(c2, 0, 2) {
        cnt[c1][c2] = pre[c1][c2][r] - pre[c1][c2][l - 1];
        ca[c1] += cnt[c1][c2];
        cb[c2] += cnt[c1][c2];
    }

    For(c, 0, 2) if(ca[c] != cb[c]) return -1;

    int ans = 0;

    auto owo = [&](int a, int b) {
        int k = min(cnt[a][b], cnt[b][a]);
        cnt[a][b] -= k;
        cnt[b][a] -= k;
        ans += k;
    };
    owo(0, 1);
    owo(0, 2);
    owo(1, 2);

    return ans + max(cnt[0][1], cnt[1][0]) * 2;
}

}

void init(string a, string b) {
    ::_init(a, b);
}

int get_distance(int x, int y) {
    return ::_get_distance(x + 1, y + 1);
}

/*

6 3
ATACAT
ACTATA
1 3
4 5
3 5

2
1
-1

*/

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 5740 KB Output is correct
2 Correct 27 ms 5712 KB Output is correct
3 Correct 33 ms 5424 KB Output is correct
4 Correct 34 ms 5708 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 300 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 3 ms 4564 KB Output is correct
5 Correct 3 ms 4564 KB Output is correct
6 Correct 4 ms 4564 KB Output is correct
7 Correct 4 ms 4308 KB Output is correct
8 Correct 3 ms 4564 KB Output is correct
9 Correct 4 ms 4564 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 3 ms 4564 KB Output is correct
5 Correct 3 ms 4564 KB Output is correct
6 Correct 4 ms 4564 KB Output is correct
7 Correct 4 ms 4308 KB Output is correct
8 Correct 3 ms 4564 KB Output is correct
9 Correct 4 ms 4564 KB Output is correct
10 Correct 27 ms 5716 KB Output is correct
11 Correct 28 ms 5716 KB Output is correct
12 Correct 29 ms 5700 KB Output is correct
13 Correct 28 ms 5856 KB Output is correct
14 Correct 29 ms 6004 KB Output is correct
15 Correct 27 ms 5900 KB Output is correct
16 Correct 27 ms 5756 KB Output is correct
17 Correct 28 ms 5832 KB Output is correct
18 Correct 28 ms 5956 KB Output is correct
19 Correct 26 ms 5832 KB Output is correct
20 Correct 27 ms 5968 KB Output is correct
21 Correct 27 ms 6112 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 3 ms 4564 KB Output is correct
5 Correct 3 ms 4564 KB Output is correct
6 Correct 4 ms 4564 KB Output is correct
7 Correct 4 ms 4308 KB Output is correct
8 Correct 3 ms 4564 KB Output is correct
9 Correct 4 ms 4564 KB Output is correct
10 Correct 4 ms 4180 KB Output is correct
11 Correct 5 ms 4564 KB Output is correct
12 Correct 4 ms 4308 KB Output is correct
13 Correct 4 ms 4564 KB Output is correct
14 Correct 4 ms 4564 KB Output is correct
15 Correct 3 ms 4564 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 5740 KB Output is correct
2 Correct 27 ms 5712 KB Output is correct
3 Correct 33 ms 5424 KB Output is correct
4 Correct 34 ms 5708 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 3 ms 4564 KB Output is correct
12 Correct 3 ms 4564 KB Output is correct
13 Correct 4 ms 4564 KB Output is correct
14 Correct 4 ms 4308 KB Output is correct
15 Correct 3 ms 4564 KB Output is correct
16 Correct 4 ms 4564 KB Output is correct
17 Correct 27 ms 5716 KB Output is correct
18 Correct 28 ms 5716 KB Output is correct
19 Correct 29 ms 5700 KB Output is correct
20 Correct 28 ms 5856 KB Output is correct
21 Correct 29 ms 6004 KB Output is correct
22 Correct 27 ms 5900 KB Output is correct
23 Correct 27 ms 5756 KB Output is correct
24 Correct 28 ms 5832 KB Output is correct
25 Correct 28 ms 5956 KB Output is correct
26 Correct 26 ms 5832 KB Output is correct
27 Correct 27 ms 5968 KB Output is correct
28 Correct 27 ms 6112 KB Output is correct
29 Correct 4 ms 4180 KB Output is correct
30 Correct 5 ms 4564 KB Output is correct
31 Correct 4 ms 4308 KB Output is correct
32 Correct 4 ms 4564 KB Output is correct
33 Correct 4 ms 4564 KB Output is correct
34 Correct 3 ms 4564 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 28 ms 5332 KB Output is correct
37 Correct 28 ms 5724 KB Output is correct
38 Correct 33 ms 5824 KB Output is correct
39 Correct 30 ms 6948 KB Output is correct
40 Correct 33 ms 6036 KB Output is correct
41 Correct 3 ms 4564 KB Output is correct
42 Correct 30 ms 6752 KB Output is correct
43 Correct 28 ms 5984 KB Output is correct
44 Correct 28 ms 6080 KB Output is correct
45 Correct 27 ms 5856 KB Output is correct
46 Correct 27 ms 6060 KB Output is correct
47 Correct 34 ms 6036 KB Output is correct