Submission #245278

#	Time	Username	Problem	Language	Result	Execution time	Memory
245278		Ort	Grudanje (COCI19_grudanje)	C++11	70 / 70	1546 ms	13996 KiB

grudanje

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#include<ext/rope>
#define mem(a, b) memset(a, (b), sizeof(a))
#define all(c) (c).begin(),(c).end()
#define sz(a) ((int)(a.size()))
#define ll long long
#define linf (ll)1e18
#define inf (int)1e9
#define minf 0x3F3F3F3F
#define pb push_back
#define fs first
#define sc second
#define mp make_pair
#define mod 1000000007
#define IO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define MAX 100010
#define MXT 100005
#define watch(x) cerr<<#x<<" = "<<(x)<<endl;

using namespace std;

typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

int n;
string s;
int bit[40][MAX];
int arr[MAX];
vector<pii> Q;

int sum(int c, int k) {
	int s = 0;
	while(k>=1) {
		s += bit[c][k];
		k -= k&-k;
	}
	return s;
}

void add(int c, int k, int x) {
	while(k<=MXT) {
		bit[c][k] += x;
		k += k&-k;
	}
}

int rsum(int c, int a, int b) {
	return sum(c, b)-sum(c, a-1);
}

bool valid(int id) {
	bool ret = true;
	for(int i=1;i<=id;i++) {
		char c = s[arr[i]-1];
		add(c-'a', arr[i], -1);
	}
	for(int i=0;i<sz(Q);i++) {
		for(int j=0;j<27;j++) {
			int cnt = rsum(j, Q[i].fs, Q[i].sc);
			if(cnt>1) ret = false;
		}
	}
	for(int i=1;i<=id;i++) {
		char c = s[arr[i]-1];
		add(c-'a', arr[i], 1);
	}
	return ret;
} 


int main() {
	IO;
	cin >> s >> n;
	for(int i=0;i<sz(s);i++) {
		add(s[i]-'a', i+1, 1);
	}
	for(int i=0;i<n;i++) {
		int a, b;
		cin >> a >> b;
		Q.pb(mp(a,b));
	}
	for(int i=1;i<=sz(s);i++) cin >> arr[i];
	int low = 0, high = sz(s), ans = 0;
	while(low<=high) {
		int mid = (low+high)>>1;
		if(valid(mid)) ans = mid, high = mid-1;
		else low = mid+1;
	}
	cout << ans;
	return 0;
}

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