Submission #585851

#	Time	Username	Problem	Language	Result	Execution time	Memory
585851		Dan4Life	Robots (IOI13_robots)	C++17	0 / 100	3078 ms	280 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define pii pair<int,int>
#define fi first 
#define se second
#define all(a) a.begin(), a.end()
#define sz(a) (int)a.size()
const int INF = (int)1e9;
vector<pii> weak, small, toy;
 
bool work(int i, int j, int type){
    if(type==0) return weak[i].fi>toy[j].fi;    
    return small[i].se>toy[j].se;
}
 
bool chk(int x){
    reverse(all(toy)); int j = sz(weak)-1, cnt = 0; bool ok = true;
    for(int i = 0; i < sz(toy); i++){
        ok&=(work(j,i,0));
        if(cnt==x) j--, cnt=0;
        cnt++;
    }
    reverse(all(toy));
    return ok;
}
 
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    for(int i = 0; i < A; i++) weak.pb({X[i],INF});
    for(int i = 0; i < B; i++) small.pb({INF,Y[i]});
    for(int i = 0; i < T; i++) toy.pb({W[i],S[i]});
    sort(all(weak)), sort(all(small)), sort(all(toy));
    if(A==0){
        if(work(0,0,1) and work(1,1,1)) return 1;
        if(work(1,0,1) and work(1,1,1)) return 2;
        return -1;
    }
    else if(B==0){
        if(!work(A-1,T-1,0)) return -1;
        int l = (T+A-1)/A, r = T;
        while(l<r){
            int mid = (l+r+1)/2;
            if(chk(mid)) r=mid;
            else l=mid+1;
        }
        return l;
    }
    else{
        if(work(0,0,0) and work(0,1,1)) return 1;
        if(work(0,0,1) and work(0,1,0)) return 1;
        if(work(0,0,0) and work(0,1,0)) return 2;
        if(work(0,0,1) and work(0,1,1)) return 2;
        return -1;
    }
}

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