Submission #438181

# Submission time Handle Problem Language Result Execution time Memory
438181 2021-06-27T17:58:46 Z BrunoPloumhans Mutating DNA (IOI21_dna) C++17
100 / 100
42 ms 5124 KB
#include "dna.h"
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 100000;

char achars[] = { 'A', 'A', 'T', 'T', 'C', 'C' };
char bchars[] = { 'T', 'C', 'A', 'C', 'A', 'T' };

int sums[MAXN+1][6];

void init(std::string a, std::string b) {
    for (int i = 0; i < a.length(); ++i) {
        for (int j = 0; j < 6; ++j) {
            sums[i+1][j] = sums[i][j] + (a[i] == achars[j] && b[i] == bchars[j]);
        }
    }
}

inline int get(int x, int y, int idx) {
    return sums[y+1][idx] - sums[x][idx];
}

inline void apply_pair(int& p1, int& p2, int& tot) {
    int app = min(p1, p2);
    p1 -= app;
    p2 -= app;
    tot += app;
    //cout << "Paired " << app << endl;
}

inline void apply_triple(int& t1, int& t2, int& t3, int& tot) {
    int app = min(min(t1, t2), t3);
    t1 -= app;
    t2 -= app;
    t3 -= app;
    tot += 2*app;
    //cout << "Tripled " << app << endl;
}

int get_distance(int x, int y) {
    int tot = 0;

    int ab = get(x, y, 0);
    int ac = get(x, y, 1);
    int ba = get(x, y, 2);
    int bc = get(x, y, 3);
    int ca = get(x, y, 4);
    int cb = get(x, y, 5);

    apply_pair(ab, ba, tot);
    apply_pair(ac, ca, tot);
    apply_pair(bc, cb, tot);
    apply_triple(ab, bc, ca, tot);
    apply_triple(ba, ac, cb, tot);

    if (ab == 0 && ac == 0 && ba == 0 && bc == 0 && ca == 0 && cb == 0) {
        return tot;
    } else {
        return -1;
    }
}

Compilation message

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (int i = 0; i < a.length(); ++i) {
      |                     ~~^~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 42 ms 4740 KB Output is correct
2 Correct 39 ms 4740 KB Output is correct
3 Correct 38 ms 4440 KB Output is correct
4 Correct 40 ms 4752 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 4 ms 3276 KB Output is correct
5 Correct 4 ms 3404 KB Output is correct
6 Correct 5 ms 3276 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 5 ms 3404 KB Output is correct
9 Correct 4 ms 3372 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 4 ms 3276 KB Output is correct
5 Correct 4 ms 3404 KB Output is correct
6 Correct 5 ms 3276 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 5 ms 3404 KB Output is correct
9 Correct 4 ms 3372 KB Output is correct
10 Correct 39 ms 4756 KB Output is correct
11 Correct 39 ms 4748 KB Output is correct
12 Correct 39 ms 4880 KB Output is correct
13 Correct 39 ms 5024 KB Output is correct
14 Correct 39 ms 5120 KB Output is correct
15 Correct 39 ms 4984 KB Output is correct
16 Correct 39 ms 4932 KB Output is correct
17 Correct 38 ms 4908 KB Output is correct
18 Correct 38 ms 5120 KB Output is correct
19 Correct 36 ms 4976 KB Output is correct
20 Correct 36 ms 5004 KB Output is correct
21 Correct 37 ms 5092 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 4 ms 3276 KB Output is correct
5 Correct 4 ms 3404 KB Output is correct
6 Correct 5 ms 3276 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 5 ms 3404 KB Output is correct
9 Correct 4 ms 3372 KB Output is correct
10 Correct 4 ms 3084 KB Output is correct
11 Correct 5 ms 3404 KB Output is correct
12 Correct 4 ms 3148 KB Output is correct
13 Correct 5 ms 3340 KB Output is correct
14 Correct 5 ms 3404 KB Output is correct
15 Correct 5 ms 3404 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 42 ms 4740 KB Output is correct
2 Correct 39 ms 4740 KB Output is correct
3 Correct 38 ms 4440 KB Output is correct
4 Correct 40 ms 4752 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 4 ms 3276 KB Output is correct
12 Correct 4 ms 3404 KB Output is correct
13 Correct 5 ms 3276 KB Output is correct
14 Correct 4 ms 3148 KB Output is correct
15 Correct 5 ms 3404 KB Output is correct
16 Correct 4 ms 3372 KB Output is correct
17 Correct 39 ms 4756 KB Output is correct
18 Correct 39 ms 4748 KB Output is correct
19 Correct 39 ms 4880 KB Output is correct
20 Correct 39 ms 5024 KB Output is correct
21 Correct 39 ms 5120 KB Output is correct
22 Correct 39 ms 4984 KB Output is correct
23 Correct 39 ms 4932 KB Output is correct
24 Correct 38 ms 4908 KB Output is correct
25 Correct 38 ms 5120 KB Output is correct
26 Correct 36 ms 4976 KB Output is correct
27 Correct 36 ms 5004 KB Output is correct
28 Correct 37 ms 5092 KB Output is correct
29 Correct 4 ms 3084 KB Output is correct
30 Correct 5 ms 3404 KB Output is correct
31 Correct 4 ms 3148 KB Output is correct
32 Correct 5 ms 3340 KB Output is correct
33 Correct 5 ms 3404 KB Output is correct
34 Correct 5 ms 3404 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 39 ms 4468 KB Output is correct
37 Correct 42 ms 4752 KB Output is correct
38 Correct 41 ms 4972 KB Output is correct
39 Correct 39 ms 5124 KB Output is correct
40 Correct 40 ms 5120 KB Output is correct
41 Correct 4 ms 3384 KB Output is correct
42 Correct 39 ms 4976 KB Output is correct
43 Correct 37 ms 5124 KB Output is correct
44 Correct 37 ms 5120 KB Output is correct
45 Correct 38 ms 4988 KB Output is correct
46 Correct 37 ms 5120 KB Output is correct
47 Correct 39 ms 5120 KB Output is correct