Submission #802329

#	Time	Username	Problem	Language	Result	Execution time	Memory
802329		Khizri	Teams (IOI15_teams)	C++17	0 / 100	4069 ms	11504 KiB

teams

#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define F first
#define S second
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
const int mxn=2e5+5;
int n,x[mxn],y[mxn];
void init(int N, int A[], int B[]) {
    n=N;
    for(int i=0;i<n;i++){
        x[i+1]=A[i];
        y[i+1]=B[i];
    }
}
bool cmp(pii a,pii b){
    if(a.S==b.S){
        return a.F>b.F;
    }
    return a.S<b.S;
}
int can(int m, int arr[]) {
	sort(arr,arr+m);
    vector<pii>vt;
    for(int i=1;i<=n;i++){
        vt.pb({x[i],y[i]});
    }
    ll sum=0;
    for(int i=0;i<m;i++){
        sum+=arr[i];
    }
    if(sum>n) return 0;
    sort(all(vt));
    for(int i=0;i<m;i++){
        int cnt=arr[i];
        int l=0,r=vt.size()-1;
        while(l<=r){
            int m=(l+r)/2;
            if(vt[m].S>=arr[i]){
                r=m-1;
            }
            else{
                l=m+1;
            }
        }
        for(int j=r+1;j<vt.size();j++){
            if(!cnt) break;
            if(vt[j].F<=arr[i]&&vt[j].S>=arr[i]){
                vt.erase(vt.begin()+j);
                j--;
                cnt--;
            }
        }
        if(cnt) return 0;
    }
    return 1;
}
/*
g++ teams.cpp grader.cpp ; .\a.exe

*/

Compilation message (stderr)

teams.cpp: In function 'int can(int, int*)':
teams.cpp:44:28: warning: conversion from 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   44 |         int l=0,r=vt.size()-1;
      |                   ~~~~~~~~~^~
teams.cpp:46:17: warning: declaration of 'int m' shadows a parameter [-Wshadow]
   46 |             int m=(l+r)/2;
      |                 ^
teams.cpp:30:13: note: shadowed declaration is here
   30 | int can(int m, int arr[]) {
      |         ~~~~^
teams.cpp:54:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         for(int j=r+1;j<vt.size();j++){
      |                       ~^~~~~~~~~~

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