Submission #619428

#	Time	Username	Problem	Language	Result	Execution time	Memory
619428		A_D	Teams (IOI15_teams)	C++14	0 / 100	4075 ms	19336 KiB

teams

#include "teams.h"
#include<bits/stdc++.h>
using namespace std;
const int N=1e5+100;
int n;
vector<pair<int,int>> vec[N];
vector<pair<int,int>> vec2[N];
void init(int N, int A[], int B[]) {
    n=N;
    for(int i=0;i<=n;i++){
        vec[i].clear();
        vec2[i].clear();
    }
    for(int i=0;i<n;i++){
        vec[A[i]].push_back({B[i],i});
        vec2[B[i]].push_back({B[i],i});
    }

}

int can(int M, int K[]) {
	set<pair<int,int>> st;

	sort(K,K+M);
	int j=0;
	for(int i=1;i<=n;i++){
        for(auto x:vec[i]){
            st.insert(x);
        }

        if(j==M)break;

        while(j!=M&&K[j]==i){

            if(st.size()<K[j]){
                return 0;
            }
            int h=K[j];

            while(h--){
                st.erase(*st.begin());
            }

        }




        for(auto x:vec2[i]){
            if(st.find(x)!=st.end()){
                st.erase(x);
            }
        }
	}

	if(j==M)return 1;
	else return 0;

}

Compilation message (stderr)

teams.cpp: In function 'void init(int, int*, int*)':
teams.cpp:8:15: warning: declaration of 'N' shadows a global declaration [-Wshadow]
    8 | void init(int N, int A[], int B[]) {
      |           ~~~~^
teams.cpp:4:11: note: shadowed declaration is here
    4 | const int N=1e5+100;
      |           ^
teams.cpp: In function 'int can(int, int*)':
teams.cpp:35:25: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |             if(st.size()<K[j]){
      |                ~~~~~~~~~^~~~~

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