Submission #746179

#	Time	Username	Problem	Language	Result	Execution time	Memory
746179		Username4132	Teams (IOI15_teams)	C++14	0 / 100	391 ms	25100 KiB

teams

#include "teams.h"
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
using pii = pair<int, int>;
#define forn(i, n) for(int i=0; i<(int)n; ++i)
#define forsn(i, s, n) for(int i=s; i<(int)n; ++i)
#define dforn(i, n) for(int i=n-1; i>=0; --i)
#define PB push_back
#define F first
#define S second

const int MAXN=500010, MAXM=200010, SQ=710;
int n, req[MAXM], nore[SQ], arr[SQ][SQ], aa[MAXN], bb[MAXN];

void init(int N, int A[], int B[]) {
	n=N;
	forn(i, n) aa[i]=A[i], bb[i]=B[i];
}

int can(int m, int K[]) {
	sort(K, K+m);
	int sz=0;
	forn(i, m){
		if(i==0 || K[i]!=K[i-1]) nore[sz]=K[i], req[sz]=1, ++sz;
		else req[sz-1]++;
	}
	
	forn(i, sz) forsn(j, i, sz+1) arr[i][j]=0;
	forn(i, n){
		auto itl = lower_bound(nore, nore+sz, aa[i]);
		auto itr = upper_bound(nore, nore+sz, bb[i]);
		arr[itl-nore][itr-nore]++;
	}
	
	forn(i, sz){
		forsn(j, i+1, sz+1){
			if(req[i]>arr[i][j]) req[i]-=arr[i][j], arr[i][j]=0;
			else{
				req[i]=0;
				arr[i][j]-=req[i];
				break;
			}
		}
		if(req[i]>0) return 0;
		forsn(j, i+2, sz+1) arr[i+1][j]+=arr[i][j];
	}
	return 1;
}

• Subtask 1: 0 / 21
• Subtask 2: 0 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23