Submission #2215164


Source Code Expand

// ------------------------------------
// Date:2018/ 3/17
// Problem:C- Big Array b.cpp
//
// ------------------------------------

#include <bits/stdc++.h>

using namespace std;

#define EACH(i,a) for (auto&& i : a)
#define FOR(i,a,b) for(int i=(int)a;i<(int)b;++i)
#define RFOR(i,a,b) for(int i=(int)b-1;i>=(int)a;--i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define ALL(a) (a).begin(),(a).end()
#define debug(x) cerr << #x << ":" << x << endl

typedef long long ll;

void CINT(){}
template <class Head,class... Tail>
void CINT(Head&& head,Tail&&... tail) {
  cin >> head; CINT(move(tail)...);
}
#define CIN(...) int __VA_ARGS__;CINT(__VA_ARGS__)
#define LCIN(...) ll __VA_ARGS__;CINT(__VA_ARGS__)
#define SCIN(...) string __VA_ARGS__;CINT(__VA_ARGS__)
static const int MOD = 1000000007;
static const int MAX_N = 1;

int main()
{
  cin.tie(0);
  ios::sync_with_stdio(false);

  CIN(N, K);
  vector< pair< ll, ll > > a(N);
  REP(i, N) {
    CIN(p, q);
    a[i] = make_pair(p, q);
  }

  sort(ALL(a), [](pair< ll, ll > x, pair< ll, ll > y) { return x.first < y.first; } );

  ll ans;
  ll cnt = 0;
  while (K > 0) {
    ans = a[cnt].first;
    K -= a[cnt++].second;
  }

  cout << ans << endl;
  
  return 0;
}

Submission Info

Submission Time
Task C - Big Array
User task4233
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1288 Byte
Status WA
Exec Time 24 ms
Memory 1792 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 300
Status
AC × 2
AC × 11
WA × 6
Set Name Test Cases
Sample sample_01.txt, sample_02.txt
All sample_01.txt, sample_02.txt, subtask_1_1.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_2.txt, subtask_1_3.txt, subtask_1_4.txt, subtask_1_5.txt, subtask_1_6.txt, subtask_1_7.txt, subtask_1_8.txt, subtask_1_9.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
subtask_1_1.txt AC 1 ms 256 KB
subtask_1_10.txt WA 5 ms 1792 KB
subtask_1_11.txt WA 5 ms 1792 KB
subtask_1_12.txt WA 5 ms 1792 KB
subtask_1_13.txt WA 5 ms 1792 KB
subtask_1_14.txt WA 5 ms 1792 KB
subtask_1_15.txt WA 5 ms 1792 KB
subtask_1_2.txt AC 2 ms 384 KB
subtask_1_3.txt AC 8 ms 768 KB
subtask_1_4.txt AC 16 ms 1280 KB
subtask_1_5.txt AC 24 ms 1792 KB
subtask_1_6.txt AC 1 ms 256 KB
subtask_1_7.txt AC 1 ms 256 KB
subtask_1_8.txt AC 3 ms 384 KB
subtask_1_9.txt AC 11 ms 896 KB