Submission #8506171
Source Code Expand
#include <bits/stdc++.h> using namespace std; int n, a[4003][2], b[2003][2], c[4003][2003][2], dp[2003][2003]; char ch; int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> n; for (int i = 1; i <= 2 * n; ++i) { cin >> ch >> a[i][1]; a[i][0] = ch == 'B' ? 0 : 1; b[a[i][1]][a[i][0]] = i; } for(int i = 2 * n; i >= 1; --i) { for(int j = 1; j <= n; ++j) { c[i][j][0] = c[i + 1][j][0]; c[i][j][1] = c[i + 1][j][1]; } ++c[i][a[i][1]][a[i][0]]; } for(int i = 1; i <= 2 * n; ++i) { for(int j = 2; j <= n; ++j) { c[i][j][0] += c[i][j - 1][0]; c[i][j][1] += c[i][j - 1][1]; } } for(int i = 0; i <= n; ++i) { for(int j = 0; j <= n; ++j) { if(i + j) dp[i][j] = 1e9; if(i) { dp[i][j] = dp[i - 1][j] + (b[i][0] - (i + j) + (c[b[i][0]][i - 1][0] + c[b[i][0]][j][1])); } if(j) { dp[i][j] = min(dp[i][j], dp[i][j - 1] + (b[j][1] - (i + j) + (c[b[j][1]][i][0] + c[b[j][1]][j - 1][1]))); } } } cout << dp[n][n] << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Sorted and Sorted |
User | NachoLibre |
Language | C++14 (GCC 5.4.1) |
Score | 600 |
Code Size | 1030 Byte |
Status | AC |
Exec Time | 105 ms |
Memory | 78592 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 600 / 600 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 1 ms | 2304 KB |
0_001.txt | AC | 1 ms | 2304 KB |
0_002.txt | AC | 2 ms | 2304 KB |
1_003.txt | AC | 1 ms | 2304 KB |
1_004.txt | AC | 2 ms | 2304 KB |
1_005.txt | AC | 2 ms | 2304 KB |
1_006.txt | AC | 2 ms | 2304 KB |
1_007.txt | AC | 2 ms | 2304 KB |
1_008.txt | AC | 1 ms | 2304 KB |
1_009.txt | AC | 2 ms | 2304 KB |
1_010.txt | AC | 1 ms | 2304 KB |
1_011.txt | AC | 1 ms | 2304 KB |
1_012.txt | AC | 1 ms | 2304 KB |
1_013.txt | AC | 1 ms | 2304 KB |
1_014.txt | AC | 75 ms | 71936 KB |
1_015.txt | AC | 13 ms | 28672 KB |
1_016.txt | AC | 56 ms | 61696 KB |
1_017.txt | AC | 23 ms | 41216 KB |
1_018.txt | AC | 2 ms | 6912 KB |
1_019.txt | AC | 10 ms | 26496 KB |
1_020.txt | AC | 65 ms | 67840 KB |
1_021.txt | AC | 25 ms | 43264 KB |
1_022.txt | AC | 14 ms | 30720 KB |
1_023.txt | AC | 64 ms | 63744 KB |
1_024.txt | AC | 82 ms | 78080 KB |
1_025.txt | AC | 94 ms | 78592 KB |
1_026.txt | AC | 93 ms | 78592 KB |
1_027.txt | AC | 94 ms | 78592 KB |
1_028.txt | AC | 93 ms | 78592 KB |
1_029.txt | AC | 95 ms | 78592 KB |
1_030.txt | AC | 94 ms | 78592 KB |
1_031.txt | AC | 94 ms | 78592 KB |
1_032.txt | AC | 98 ms | 78592 KB |
1_033.txt | AC | 101 ms | 78592 KB |
1_034.txt | AC | 105 ms | 78592 KB |
1_035.txt | AC | 85 ms | 78592 KB |