Submission #866432

#	Time	Username	Problem	Language	Result	Execution time	Memory
866432		vjudge1	Grudanje (COCI19_grudanje)	C++17	35 / 70	211 ms	524288 KiB

grudanje

#pragma GCC optimize("unroll-loops,Ofast,O3")
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define spc << " " <<
#define endl "\n"
#define all(x) x.begin(), x.end()
#define int long long
#define ii pair<int,int>
#define vi vector<int>
#define vii vector<ii>
#define st first
#define nd second
#define inf 1000000009
#define MOD 1000000007
#define lim 200005
using namespace std;






void solve(){
    string s; cin >> s;
    int n=s.size();
    string pref[n+5]; pref[0]=s;
    int q; cin >> q;
    ii que[q+5];
    for(int i=1; i<=q; i++) cin >> que[i].st >> que[i].nd;

    for(int i=1; i<=n; i++){
        int a; cin >> a;
        pref[i] = pref[i-1];
        pref[i][a-1] = '*';
    }

    int cnt[26][n+5];
    int l=0, r=n, ans=0;
    while(l<=r){
        int mid = (l+r)/2;

        for(int i=0; i<26; i++){
            cnt[i][0]=0;
            for(int j=1; j<=n; j++){
                cnt[i][j] = cnt[i][j-1];
                if((pref[mid][j-1] - 'a') == i) cnt[i][j]++;
            }
        }

        int flag=1;
        for(int i=1; i<=q; i++){
            for(int c=0; c<26; c++){
                if(cnt[c][que[i].nd] - cnt[c][que[i].st-1] > 1){
                    flag=0;
                    break;
                }
            }
        }

        if(flag){
            ans = mid;
            r = mid-1;
        }
        else{
            l = mid+1;
        }
    }
    cout << ans << endl;
}


signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    #ifdef Local
    freopen("in","r",stdin);
    freopen("out","w",stdout);
    #endif

    int t=1;
    //cin >> t;
    while(t--) solve();
}

• Subtask 1: 7 / 7
• Subtask 2: 7 / 7
• Subtask 3: 7 / 7
• Subtask 4: 7 / 7
• Subtask 5: 7 / 7
• Subtask 6: 0 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 7
• Subtask 9: 0 / 7
• Subtask 10: 0 / 7