Submission #542367

#	Time	Username	Problem	Language	Result	Execution time	Memory
542367		rembocoder	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#include <bits/stdc++.h>

using namespace std;

#define int int64_t
#define forn(i, n) for (int i = 0; i < (int)(n); i++)

struct my_hash {
    inline size_t operator()(const pair<int, int>& a) const {
        return a.first * 31 + a.second;
    }
};

string s, t;
string act = "ACT";
vector<vector<int>> cnt(3);

void init(string s_, string t_) {
    s = s_;
    t = t_;
    int n = s.size();
    for (int i = 0; i < 3; i++) {
        cnt[i].resize(n + 1);
        for (int j = 0; j < n; j++) {
            cnt[i][j + 1] = cnt[i][j] + (act[i] == s[j]);
            cnt[i][j + 1] = cnt[i][j] - (act[i] == t[j]);
        }
    }
}

int get_distance(int l, int r) {
    r++;
    for (int i = 0; i < 3; i++) {
        if (cnt[i][r] != cnt[i][l]) {
            return -1;
        }
    }
    return 0;
}

/*int32_t main() {
    ios_base::sync_with_stdio(0);
    int t = 1;
    cin >> t;
    while (t--) {
        int n;
        cin >> n;
        vector<int> a(n);
        for (int i = 0; i < n; i++) {
            cin >> a[i];
        }
        sort(a.begin(), a.end());
        int sum_a0 = 0;
        for (int i = 1; i < n; i++) {
            sum_a0 += a[0] + a[i];
        }
        int sum_ab = 0;
        for (int i = 0; i < n - 1; i++) {
            sum_ab += a[i] + a.back();
        }
        if (sum_a0 > 0 || sum_ab < 0) {
            cout << "INF\n";
            continue;
        }
        vector<int> sum(n + 1);
        for (int i = 0; i < n; i++) {
            sum[i + 1] = sum[i] + a[i];
        }
        int ans = -2e18;
        for (int i = 0; i < n; i++) {
            int cur = -a[i] * a[i] * (n - 1);
            cur += (sum[n] - sum[i + 1] - a[i] * (n - i - 1)) * (a[0] - a[i]);
            cur += (sum[i] - sum[1] - a[i] * (i - 1)) * (a[n - 1] - a[i]);
            ans = max(ans, cur);
        }
        cout << ans << '\n';
    }
    return 0;
}
*/

Compilation message (stderr)

dna.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization ("O3")
      | 
dna.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("unroll-loops")
      | 
/usr/bin/ld: /tmp/ccLSpYkZ.o: in function `main':
grader.cpp:(.text.startup+0x39d): undefined reference to `get_distance(int, int)'
collect2: error: ld returned 1 exit status