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Submission #638438

# Submission time Handle Problem Language Result Execution time Memory
638438 2022-09-06T02:57:36 Z abcisosm5 Mutating DNA (IOI21_dna) C++17
100 / 100
 96 ms 23528 KB 
#include <bits/stdc++.h>
using namespace std;
vector<vector<vector<int>>> v;

int ctoi(char c){
    if(c == 'A') return 0;
    else if(c == 'T') return 1;
    return 2;
}

void init(string a, string b){ //O(N)
    v = vector<vector<vector<int>>>(a.length());
    v[0] = vector<vector<int>>(3, vector<int>(3));
    v[0][ctoi(a[0])][ctoi(b[0])] = 1;
    for(int i = 1; i < a.length(); i++){
        v[i] = v[i-1];
        v[i][ctoi(a[i])][ctoi(b[i])]++;
    }
}

int get_distance(int x, int y){ //O(1)
    //check if possible
    vector<vector<int>> dif = v[y];
    if(x > 0){
        for(int i = 0; i < 3; i++){
            for(int j = 0; j < 3; j++){
                dif[i][j] -= v[x-1][i][j];
            }
        }
    }

    for(int i = 0; i < 3; i++){
        int coli, rowi; coli = rowi = 0;
        for(int j = 0; j < 3; j++){
            coli += dif[i][j];
            rowi += dif[j][i];
        }
        if(coli != rowi) return -1;
    }

    //calculate total # swaps needed
    int mins[3] = {min(dif[0][1], dif[1][0]), min(dif[0][2], dif[2][0]), min(dif[1][2], dif[2][1])};
    int maxs[3] = {max(dif[0][1], dif[1][0]), max(dif[0][2], dif[2][0]), max(dif[1][2], dif[2][1])};
    int oneswap = mins[0] + mins[1] + mins[2];
    int twoswap = (maxs[0]-mins[0]+maxs[1]-mins[1]+maxs[2]-mins[2])*2/3;

    return oneswap + twoswap;
}

Compilation message

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:15:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(int i = 1; i < a.length(); i++){
      |                    ~~^~~~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 22860 KB Output is correct
2 Correct 88 ms 23064 KB Output is correct
3 Correct 79 ms 21244 KB Output is correct
4 Correct 83 ms 23096 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 300 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 27 ms 20312 KB Output is correct
5 Correct 26 ms 20556 KB Output is correct
6 Correct 25 ms 20444 KB Output is correct
7 Correct 24 ms 19196 KB Output is correct
8 Correct 25 ms 20648 KB Output is correct
9 Correct 24 ms 20556 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 27 ms 20312 KB Output is correct
5 Correct 26 ms 20556 KB Output is correct
6 Correct 25 ms 20444 KB Output is correct
7 Correct 24 ms 19196 KB Output is correct
8 Correct 25 ms 20648 KB Output is correct
9 Correct 24 ms 20556 KB Output is correct
10 Correct 84 ms 22800 KB Output is correct
11 Correct 85 ms 23056 KB Output is correct
12 Correct 92 ms 22052 KB Output is correct
13 Correct 88 ms 22564 KB Output is correct
14 Correct 90 ms 23508 KB Output is correct
15 Correct 93 ms 23528 KB Output is correct
16 Correct 76 ms 21968 KB Output is correct
17 Correct 78 ms 22416 KB Output is correct
18 Correct 84 ms 23396 KB Output is correct
19 Correct 65 ms 22104 KB Output is correct
20 Correct 68 ms 22548 KB Output is correct
21 Correct 64 ms 23340 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 27 ms 20312 KB Output is correct
5 Correct 26 ms 20556 KB Output is correct
6 Correct 25 ms 20444 KB Output is correct
7 Correct 24 ms 19196 KB Output is correct
8 Correct 25 ms 20648 KB Output is correct
9 Correct 24 ms 20556 KB Output is correct
10 Correct 23 ms 18848 KB Output is correct
11 Correct 26 ms 20624 KB Output is correct
12 Correct 24 ms 19308 KB Output is correct
13 Correct 26 ms 20420 KB Output is correct
14 Correct 25 ms 20532 KB Output is correct
15 Correct 25 ms 20616 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 22860 KB Output is correct
2 Correct 88 ms 23064 KB Output is correct
3 Correct 79 ms 21244 KB Output is correct
4 Correct 83 ms 23096 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 300 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 27 ms 20312 KB Output is correct
12 Correct 26 ms 20556 KB Output is correct
13 Correct 25 ms 20444 KB Output is correct
14 Correct 24 ms 19196 KB Output is correct
15 Correct 25 ms 20648 KB Output is correct
16 Correct 24 ms 20556 KB Output is correct
17 Correct 84 ms 22800 KB Output is correct
18 Correct 85 ms 23056 KB Output is correct
19 Correct 92 ms 22052 KB Output is correct
20 Correct 88 ms 22564 KB Output is correct
21 Correct 90 ms 23508 KB Output is correct
22 Correct 93 ms 23528 KB Output is correct
23 Correct 76 ms 21968 KB Output is correct
24 Correct 78 ms 22416 KB Output is correct
25 Correct 84 ms 23396 KB Output is correct
26 Correct 65 ms 22104 KB Output is correct
27 Correct 68 ms 22548 KB Output is correct
28 Correct 64 ms 23340 KB Output is correct
29 Correct 23 ms 18848 KB Output is correct
30 Correct 26 ms 20624 KB Output is correct
31 Correct 24 ms 19308 KB Output is correct
32 Correct 26 ms 20420 KB Output is correct
33 Correct 25 ms 20532 KB Output is correct
34 Correct 25 ms 20616 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 81 ms 21324 KB Output is correct
37 Correct 82 ms 23092 KB Output is correct
38 Correct 87 ms 22200 KB Output is correct
39 Correct 92 ms 23500 KB Output is correct
40 Correct 96 ms 23476 KB Output is correct
41 Correct 25 ms 20556 KB Output is correct
42 Correct 77 ms 22172 KB Output is correct
43 Correct 76 ms 23348 KB Output is correct
44 Correct 78 ms 23500 KB Output is correct
45 Correct 62 ms 22168 KB Output is correct
46 Correct 64 ms 23412 KB Output is correct
47 Correct 64 ms 23456 KB Output is correct