Submission #65358

#	Time	Username	Problem	Language	Result	Execution time	Memory
65358		boook	Robots (IOI13_robots)	C++14	90 / 100	304 ms	9244 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define REP(i,j,k)     for(int i = j ; i < k ; ++i)
#define RREP(i,j,k)    for(int i = j ; i >=k ; --i)
#define A    first
#define B    second
#define mp   make_pair
#define pb   emplace_back
#define PII pair<int , int>
#define MEM(i,j)   memset(i , j , sizeof i)
#define ALL(i)     i.begin() , i.end()
#define DBGG(i,j)     cout << i << " " << j << endl
#define DB4(i,j,k,l)  cout << i << " " << j << " " << k << " " << l << endl
#define IOS cin.tie(0) , cout.sync_with_stdio(0)
#define endl "\n"
///------------------------------------------------------------
#define int long long
#define MAX 1010
#define INF 0x3f3f3f3f

int sum[MAX][MAX];
int judge(int32_t now , int32_t n , int32_t w[] , int32_t a , int32_t x[]){
	int pos = 0;
	REP(i , 0 , a){
		REP(times , 0 , now){
			if(pos == n) return 1;
			if(x[i] > w[pos]) pos ++;
			else break;
		}
	}
	return pos == n;
}
int32_t putaway(int32_t a, int32_t b, int32_t n, int32_t x[], int32_t y[], int32_t w[], int32_t s[]) {
	if(b == 0){
		sort(x , x + a);
		sort(w , w + n);
		int ans = n + 1;
		RREP(i , 20 , 0){
			int to = ans - (1 << i);
			if(judge(to , n , w , a , x) == 1) ans = to;
		}
		if(ans == n + 1) ans = -1;
		return ans;
	}
	else {
		sort(x , x + a) , x[a] = 2123456789;
		sort(y , y + b) , y[b] = 2123456789;
		REP(i , 0 , n){
			if(x[a - 1] <= w[i] && y[b - 1] <= s[i]) return -1;
			else {
				int v1 = upper_bound(x , x + a + 1 , w[i]) - x;
				int v2 = upper_bound(y , y + b + 1 , s[i]) - y;
				sum[a - v1][b - v2] ++;
			}
		}
		REP(i , 0 , a + 1) REP(j , 0 , b + 1){
			if(i - 1 >= 0) sum[i][j] += sum[i - 1][j];
			if(j - 1 >= 0) sum[i][j] += sum[i][j - 1];
			if(i - 1 >= 0 && j - 1 >= 0) sum[i][j] -= sum[i - 1][j - 1];
		}
		int ans = n;
		RREP(base , 20 , 0){
			int to = ans - (1 << base);
			if(to >= 1){
				int ok = 1;
				REP(i , 0 , a + 1) REP(j , 0 , b + 1){
					if((i + j) * to < sum[i][j]){
						ok = 0;
						break;
					}
				}
				if(ok == 1) ans = to;
			}
		}
	    return ans;
	}
}
#undef int

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 25 / 25
• Subtask 4: 37 / 37
• Subtask 5: 0 / 10