Submission #894043


Source Code Expand

#include <bits/stdc++.h>

using namespace std;

const int N = 1234567;

int z[N];
int a[N];
int pos[N];
int at[N];

int main() {
  int n, m, q;
  scanf("%d %d", &n, &m);
  scanf("%d", &q);
  for (int i = 0; i < q; i++) {
    scanf("%d", z + i);
    z[i]--;
  }
  for (int i = 0; i < m; i++) {
    a[i] = -1;
    pos[i] = -1;
    at[i] = 0;
  }
  int known = 0;
  at[0] = n;
  at[m] = 0;
  for (int it = q - 1; it >= 0; it--) {
    int i = z[it];
    if (pos[i] == -1) {
      a[known] = i;
      pos[i] = known;
      at[known]--;
      known++;
      at[known]++;
      continue;
    }
    if (at[pos[i]] > 0) {
      at[pos[i]]--;
      at[pos[i] + 1]++;
    }
  }
  int first = -1;
  for (int i = 0; i <= m; i++) {
    if (at[i] > 0) {
      first = i;
      break;
    }
  }
  vector <int> all;
  for (int i = first; i < known; i++) {
    all.push_back(a[i]);
  }
  for (int i = 0; i < m; i++) {
    if (pos[i] == -1) {
      all.push_back(i);
    }
  }
  sort(all.begin(), all.end());
  for (int i = first; i < known; i++) {
    if (all[i - first] != a[i]) {
      puts("No");
      return 0;
    }
  }
  puts("Yes");
  return 0;
}

Submission Info

Submission Time
Task E - LRU Puzzle
User tourist
Language C++14 (GCC 5.4.1)
Score 1200
Code Size 1205 Byte
Status AC
Exec Time 21 ms
Memory 2428 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:14:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &n, &m);
                         ^
./Main.cpp:15:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &q);
                  ^
./Main.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", z + i);
                       ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1200 / 1200
Status
AC × 4
AC × 76
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.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, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt, 1_64.txt, 1_65.txt, 1_66.txt, 1_67.txt, 1_68.txt, 1_69.txt, 1_70.txt, 1_71.txt
Case Name Status Exec Time Memory
0_00.txt AC 2 ms 256 KB
0_01.txt AC 2 ms 256 KB
0_02.txt AC 2 ms 256 KB
0_03.txt AC 2 ms 256 KB
1_00.txt AC 3 ms 256 KB
1_01.txt AC 3 ms 256 KB
1_02.txt AC 15 ms 2428 KB
1_03.txt AC 14 ms 2428 KB
1_04.txt AC 14 ms 2428 KB
1_05.txt AC 14 ms 2428 KB
1_06.txt AC 16 ms 2428 KB
1_07.txt AC 16 ms 2428 KB
1_08.txt AC 17 ms 2428 KB
1_09.txt AC 16 ms 2428 KB
1_10.txt AC 13 ms 1280 KB
1_11.txt AC 13 ms 1280 KB
1_12.txt AC 13 ms 1280 KB
1_13.txt AC 14 ms 1664 KB
1_14.txt AC 13 ms 1280 KB
1_15.txt AC 13 ms 1280 KB
1_16.txt AC 13 ms 1280 KB
1_17.txt AC 14 ms 1664 KB
1_18.txt AC 16 ms 2300 KB
1_19.txt AC 14 ms 1408 KB
1_20.txt AC 16 ms 2300 KB
1_21.txt AC 21 ms 2428 KB
1_22.txt AC 16 ms 2428 KB
1_23.txt AC 16 ms 1792 KB
1_24.txt AC 16 ms 2428 KB
1_25.txt AC 16 ms 1664 KB
1_26.txt AC 11 ms 640 KB
1_27.txt AC 11 ms 640 KB
1_28.txt AC 12 ms 640 KB
1_29.txt AC 12 ms 640 KB
1_30.txt AC 15 ms 2044 KB
1_31.txt AC 19 ms 2172 KB
1_32.txt AC 14 ms 1664 KB
1_33.txt AC 21 ms 2172 KB
1_34.txt AC 14 ms 1152 KB
1_35.txt AC 14 ms 1536 KB
1_36.txt AC 13 ms 1152 KB
1_37.txt AC 16 ms 1536 KB
1_38.txt AC 15 ms 1920 KB
1_39.txt AC 20 ms 1920 KB
1_40.txt AC 17 ms 2428 KB
1_41.txt AC 20 ms 2428 KB
1_42.txt AC 11 ms 640 KB
1_43.txt AC 12 ms 640 KB
1_44.txt AC 11 ms 640 KB
1_45.txt AC 11 ms 640 KB
1_46.txt AC 13 ms 1024 KB
1_47.txt AC 15 ms 1408 KB
1_48.txt AC 13 ms 1280 KB
1_49.txt AC 20 ms 2300 KB
1_50.txt AC 12 ms 768 KB
1_51.txt AC 11 ms 640 KB
1_52.txt AC 12 ms 896 KB
1_53.txt AC 12 ms 768 KB
1_54.txt AC 15 ms 2172 KB
1_55.txt AC 13 ms 1408 KB
1_56.txt AC 16 ms 2428 KB
1_57.txt AC 17 ms 2300 KB
1_58.txt AC 11 ms 640 KB
1_59.txt AC 11 ms 640 KB
1_60.txt AC 11 ms 640 KB
1_61.txt AC 11 ms 640 KB
1_62.txt AC 12 ms 1280 KB
1_63.txt AC 14 ms 2428 KB
1_64.txt AC 12 ms 1152 KB
1_65.txt AC 20 ms 2172 KB
1_66.txt AC 11 ms 640 KB
1_67.txt AC 11 ms 640 KB
1_68.txt AC 11 ms 640 KB
1_69.txt AC 11 ms 640 KB
1_70.txt AC 14 ms 2428 KB
1_71.txt AC 20 ms 2172 KB