Submission #691581

#	Time	Username	Problem	Language	Result	Execution time	Memory
691581		vjudge1	Mutating DNA (IOI21_dna)	C++17	0 / 100	31 ms	5188 KiB

dna

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include <bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

/* DEFINES */
#define F first
#define S second
#define ll long long
#define ull unsigned long long
#define ld long double
#define npos ULLONG_MAX
#define INF LLONG_MAX
#define vv(a) vector<a>
#define pp(a, b) pair<a, b>
#define pq(a) priority_queue<a>
#define qq(a) queue<a>
#define ss(a) set<a>
#define mm(a, b) map<a, b>
#define ump(a, b) unordered_map<a, b>
#define sync                      \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
#define elif else if
#define endl "\n"
#define allc(a) begin(a), end(a)
#define all(a) a, a + sizeof(a) / sizeof(a[0])
#define pb push_back
#define logi(a) __lg(a)
#define sqrt(a) sqrtl(a)
#define mpr make_pair
#define ins insert
using namespace std;
using namespace __gnu_pbds;
using namespace __cxx11;
typedef char chr;
typedef basic_string<chr> str;
template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll sz = 1e5 + 5;
ll pref[sz], cnt[128][sz];
void init(str a, str b)
{
    a = ' ' + a;
    b = ' ' + b;
    for (ll i = 1; i < b.size(); i++)
        pref[i] = pref[i - 1] + (a[i] != b[i]), cnt[a[i] - 'A'][i]++, cnt[b[i] - 'A'][i]++;
}
int get_distance(int x, int y)
{
    x++, y++;
    for (ll c : {3, 0, 'T' - 'A'})
        if (cnt[c][y] - cnt[c][x - 1])
            return -1;
    return (pref[y] - pref[x - 1] + 1) >> 1;
}
void solve()
{
    
}
/*

*/
// int main()
// {
//     sync
//         // precomp();
//         ll t = 1;
//     // cin >> t;
//     for (ll i = 1; i <= t; i++)
//         // cout << "Case #" << i << ": ",
//         solve();
//     cerr << "\nTime elapsed : " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms\n";
// }

Compilation message (stderr)

dna.cpp: In function 'void init(str, str)':
dna.cpp:50:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for (ll i = 1; i < b.size(); i++)
      |                    ~~^~~~~~~~~~

• Subtask 1: 0 / 21
• Subtask 2: 0 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16