Submission #654965

#	Time	Username	Problem	Language	Result	Execution time	Memory
654965		Bliznetc	Programiranje (COCI17_programiranje)	C++17	80 / 80	26 ms	5836 KiB

programiranje

#include <bits/stdc++.h>

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

using namespace std;

#define pb push_back
#define sz size()
#define all(x) x.begin(), x.end()
#define F first
#define S second

typedef pair < int, int > pii;
typedef vector < int >  vi;
typedef vector < vi >  vvi;

int pref[100100][27];

void solve(){
    string s;
    cin >> s;
    int n = s.sz;
    s = '+' + s;
    for (int i = 1; i <= n; i++) {
        pref[i][s[i] - 'a'] = 1;
        for (int j = 0; j < 26; j++) {
            pref[i][j] += pref[i - 1][j];
        }
    }

    int q;
    cin >> q;
    while (q--) {
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        bool ok = 1;
        for (int i = 0; i <= 25; i++) {
            ok &= (pref[b][i] - pref[a - 1][i] == pref[d][i] - pref[c - 1][i]);
        }
        cout << (ok == 1 ? "DA" : "NE") << "\n";
    }
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int t = 1;
    //cin >> t;
    while (t--) {
        solve();
        cout << "\n";
    }
}

• Subtask 1: 80 / 80