Submission #550871

#	Time	Username	Problem	Language	Result	Execution time	Memory
550871		David_M	로봇 (IOI13_robots)	C++14	76 / 100	3080 ms	65536 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(), (x).end()
#define pb push_back

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    int ans=-1;
    vector<array<int, 3>> p(T);
    set<array<int, 2>> V;
    for (int i=0; i<T; i++)p[i]={W[i], S[i], i},V.insert({S[i],i});
    sort(all(p));sort(X, X+A);sort(Y, Y+B);

    int l=1, r=T+1;
    while(l<=r){
        int m=l+r>>1;
        int M=0, k=0;
        vector<bool> f(T,0);
        set<array<int, 2>> v=V;
        priority_queue<array<int, 2>> s;
        for (int e=0; e<A; e++){int x=X[e];M=m;
            while(k<T && x>p[k][0]) s.push({p[k][1],p[k][2]}), k++;
            while(!s.empty() && M--) v.erase(s.top()), s.pop();
        }
        for (int e=0; e<B; e++){int y=Y[e];M=m;
            while(v.size() && M-- && y>(*v.begin())[0])
                v.erase(v.begin());
        }
        if(v.size())l=m+1; else ans=m, r=m-1;
    }
    return ans;
}

Compilation message (stderr)

robots.cpp: In function 'int putaway(int, int, int, int*, int*, int*, int*)':
robots.cpp:16:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   16 |         int m=l+r>>1;
      |               ~^~

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