Submission #252200

#	Time	Username	Problem	Language	Result	Execution time	Memory
252200		Blagojce	Restore Array (RMI19_restore)	C++11	20 / 100	8 ms	668 KiB

restore

#include <bits/stdc++.h> 
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)
#include <time.h>
#include <cmath>

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;

const int i_inf = 1e9;
const ll inf = 1e18;
const ll mod = 1000000007;
const ld eps = 1e-13;
const ld pi  = 3.14159265359;
 
mt19937 _rand(time(NULL));
clock_t timer = clock();
const int mxn = 1e5;
int n, m;
int l[mxn], r[mxn], k[mxn], val[mxn];
void brute_force(){
	int mat[n][n];
	fr(i, 0, n){
		int bit = 0;
		fr(j, i, n){
			bit|=(1<<j);
			mat[i][j] = bit;
		}
	}
	int ANS = -1;
	fr(mask, 0, (1<<n)){
		bool ok = true;
		fr(i, 0, m){
			int len = r[i]-l[i]+1;
			int cnt = __builtin_popcount(mask&mat[l[i]][r[i]]);
			
			
			
			if(val[i] == 0 && k[i] > len-cnt){
				ok = false;
				break;
			}
			if(val[i] == 1 && cnt < len - k[i]+1){
				ok = false;
				break;
			}
		}
		if(ok){
			
			ANS = mask;
			
			break;
		}
		
	}
	if(ANS == -1){
		cout<<-1<<endl;
	}
	else{
		fr(i, 0, n){
			if(ANS&(1<<i)) cout<<1<<' ';
			else cout<<0<<' ';
		}
		cout<<endl;
	}
}
void k1(){
	int ans[n];
	memset(ans, 0, sizeof(ans));
	fr(i, 0, m){
		if(val[i] == 0) continue;
		fr(j, l[i], r[i]+1){
			ans[j] = 1;
		}
	}
	fr(i, 0, m){
		if(val[i] == 1) continue;
		bool ok = false;
		fr(j, l[i], r[i]+1){
			if(ans[j] == 0){
				ok = true;
				break;
			}
		}
		if(!ok){
			cout<<-1<<endl;
			return;
		}
	}
	fr(i, 0, n){
		cout<<ans[i]<<' ';
	}
	cout<<endl;
}


	
void solve(){
	cin >> n >> m;
	int cnt[n+1];
	memset(cnt, 0, sizeof(cnt));
	fr(i, 0, m){
		cin >> l[i] >> r[i] >> k[i] >> val[i];
		++cnt[k[i]];
	}
	if(n < 20){
		brute_force();
	}
	else if(cnt[1] == m){
		k1();
	}else{
		cout<<-1<<endl;
	}	
}

 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	solve();
}

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 0 / 25
• Subtask 4: 0 / 55