Submission #3106189


Source Code Expand

#include <bits/stdc++.h>
#define N 1000000007
using namespace std;

int n, m, q, k, x;
int a[2005] = {0};
// dp[i][j] = combi i:type j:num
int dp[2005][2005] = {0};
// ans[i][j] = combi i:not use j:num
int ans[2005][2005] = {0};

void solve();

int main() {
  int i;
  cin >> n >> m >> q;
  for(i = 0; i < n; ++i) cin >> a[i];
  solve();
  for(i = 0; i < q; ++i) {
    cin >> k >> x;
    cout << ans[k][m - x] << endl;
  }
  return 0;
}

void solve() {
  int i, j;
  for(i = 0; i <= n; ++i) dp[i][0] = 1;
  for(i = 1; i <= n; ++i)
    for(j = 1; j <= m; ++j) {
      dp[i][j] = dp[i][j - 1] + dp[i - 1][j];
      dp[i][j] %= N;
      if(j - a[i - 1] - 1 >= 0)
        dp[i][j] -= dp[i - 1][j - a[i - 1] - 1];
      while(dp[i][j] < 0) dp[i][j] += N;
      dp[i][j] %= N;
    }
  for(i = 1; i <= n; ++i) {
    for(j = 0; j <= m; ++j) {
      ans[i][j] = dp[n][j] - dp[n][j - 1];
      if(j - a[i - 1] - 1 >= 0)
        ans[i][j] += ans[i][j - a[i - 1] - 1];
    }
  }
}

Submission Info

Submission Time
Task D - 注文の多い高橋商店
User m_tsubasa
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1012 Byte
Status WA
Exec Time 1175 ms
Memory 37248 KB

Judge Result

Set Name Sample Subtask1 Subtask2 Subtask3 Subtask4
Score / Max Score 0 / 0 0 / 10 0 / 20 0 / 50 0 / 20
Status
AC × 2
AC × 5
WA × 5
AC × 5
WA × 8
AC × 5
WA × 8
AC × 7
WA × 16
Set Name Test Cases
Sample sample_01.txt, sample_02.txt
Subtask1 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt
Subtask2 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt
Subtask3 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask3_01.txt, subtask3_02.txt, subtask3_03.txt
Subtask4 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask3_01.txt, subtask3_02.txt, subtask3_03.txt, subtask4_01.txt, subtask4_02.txt, subtask4_03.txt, subtask4_04.txt, subtask4_05.txt, subtask4_06.txt, subtask4_07.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 2304 KB
sample_02.txt AC 1 ms 2304 KB
subtask1_01.txt AC 2 ms 2304 KB
subtask1_02.txt AC 2 ms 2304 KB
subtask1_03.txt AC 2 ms 2304 KB
subtask1_04.txt WA 2 ms 2560 KB
subtask1_05.txt WA 3 ms 4736 KB
subtask1_06.txt WA 3 ms 4736 KB
subtask1_07.txt WA 2 ms 4736 KB
subtask1_08.txt WA 2 ms 4736 KB
subtask2_01.txt WA 106 ms 5248 KB
subtask2_02.txt WA 208 ms 5760 KB
subtask2_03.txt WA 206 ms 5632 KB
subtask3_01.txt WA 29 ms 18688 KB
subtask3_02.txt WA 59 ms 31616 KB
subtask3_03.txt WA 52 ms 31616 KB
subtask4_01.txt WA 981 ms 31360 KB
subtask4_02.txt WA 1149 ms 36736 KB
subtask4_03.txt AC 1062 ms 32000 KB
subtask4_04.txt AC 1007 ms 3328 KB
subtask4_05.txt WA 1175 ms 36608 KB
subtask4_06.txt WA 1103 ms 37248 KB
subtask4_07.txt WA 1170 ms 36352 KB