Submission #1875378


Source Code Expand

#include <iostream>
#include <iomanip> // << fixed << setprecision(xxx)
#include <algorithm> // do { } while ( next_permutation(A, A+xxx) ) ;
#include <vector>
#include <string> // to_string(nnn) // substr(m, n) // stoi(nnn)
#include <complex>
#include <tuple> // get<n>(xxx)
#include <queue>
#include <stack>
#include <map> // if (M.find(key) != M.end()) { }
#include <set> // S.insert(M);
// if (S.find(key) != S.end()) { }
// for (auto it=S.begin(); it != S.end(); it++) { }
// auto it = S.lower_bound(M);
#include <random> // random_device rd; mt19937 mt(rd());
#include <cctype>
#include <cassert>
#include <cmath>
#include <cstdio>
#include <cstdlib> // atoi(xxx)
using namespace std;

#define DEBUG 0 // change 0 -> 1 if we need debug.
// insert #if<tab> by my emacs. #if DEBUG == 1 ... #end

typedef long long ll;

// const int dx[4] = {1, 0, -1, 0};
// const int dy[4] = {0, 1, 0, -1};

// const int C = 1e6+10;
// const ll M = 1000000007;

int main () {
  int N;
  cin >> N;
  int a[100010];
  for (auto i = 0; i < N; ++i) {
    cin >> a[i];
  }
  int cnt[100010];
  fill(cnt, cnt+100010, 0);
  int ans = 0;
  for (auto i = 0; i < N; ++i) {
    if (a[i] > N) {
      ans++;
    } else {
      cnt[a[i]]++;
    }
  }
  for (auto i = 1; i <= N; ++i) {
    if (cnt[i] >= i) {
      ans += cnt[i] - i;
    } else {
      ans += cnt[i];
    }
  }
  cout << ans << endl;
}

Submission Info

Submission Time
Task C - Good Sequence
User kazunetakahashi
Language C++14 (GCC 5.4.1)
Score 300
Code Size 1436 Byte
Status AC
Exec Time 58 ms
Memory 1024 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 5
AC × 18
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 640 KB
0_01.txt AC 1 ms 640 KB
0_02.txt AC 1 ms 640 KB
0_03.txt AC 1 ms 640 KB
0_04.txt AC 1 ms 640 KB
1_00.txt AC 1 ms 640 KB
1_01.txt AC 1 ms 640 KB
1_02.txt AC 19 ms 1024 KB
1_03.txt AC 37 ms 1024 KB
1_04.txt AC 41 ms 1024 KB
1_05.txt AC 42 ms 1024 KB
1_06.txt AC 58 ms 1024 KB
1_07.txt AC 36 ms 1024 KB
1_08.txt AC 40 ms 1024 KB
1_09.txt AC 43 ms 1024 KB
1_10.txt AC 46 ms 1024 KB
1_11.txt AC 49 ms 1024 KB
1_12.txt AC 51 ms 1024 KB