# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
207976 | 2020-03-09T15:42:54 Z | DodgeBallMan | Miners (IOI07_miners) | C++14 | 251 ms | 1144 KB |
#include <bits/stdc++.h> using namespace std; int dp[2][4][4][4][4], a[101000]; int n, ans; string s; int cal( int a, int b, int c ) { int ret = 0; if(a == 1 || b == 1 || c == 1) ret++; if(a == 2 || b == 2 || c == 2) ret++; if(a == 3 || b == 3 || c == 3) ret++; return ret; } int main() { scanf("%d",&n); cin >> s; for( int i = 1 ; i <= n ; i++ ){ if( s[i-1] == 'M' )a[i] = 1; else if( s[i-1] == 'F' )a[i] = 2; else a[i] = 3; } for( int i = 0 ; i < 2 ; i++ )for( int j = 0 ; j < 4 ; j++ )for( int k = 0 ; k < 4 ; k++ )for( int l = 0 ; l < 4 ; l++ )for( int m = 0 ; m < 4 ; m++ )dp[i][j][k][l][m] = -999999999; dp[1][0][a[1]][0][0] = dp[1][0][0][0][a[1]] = 1; for( int i = 2 ; i <= n ; i++ ){ for( int j = 0 ; j < 4 ; j++ )for( int k = 0 ; k < 4 ; k++ )for( int l = 0 ; l < 4 ; l++ )for( int m = 0 ; m < 4 ; m++ ){ dp[i%2][l][a[i]][j][k] = max( dp[(i+1)%2][m][l][j][k] + cal( m, l, a[i] ), dp[i%2][l][a[i]][j][k] ); } for( int j = 0 ; j < 4 ; j++ )for( int k = 0 ; k < 4 ; k++ )for( int l = 0 ; l < 4 ; l++ )for( int m = 0 ; m < 4 ; m++ ){ dp[i%2][j][k][l][a[i]] = max( dp[(i+1)%2][j][k][m][l] + cal( m, l, a[i] ), dp[i%2][j][k][l][a[i]] ); } } for( int i = 0 ; i < 4 ; i++ )for( int j = 0 ; j < 4 ; j++ ) for( int k = 0 ; k < 4 ; k++ )for( int l = 0 ; l < 4 ; l++ ){ ans = max( ans, dp[n%2][i][j][k][l] ); } printf("%d",ans); return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 256 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 256 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 380 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 5 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 7 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 16 ms | 380 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 29 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 68 ms | 508 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 190 ms | 888 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 251 ms | 1144 KB | Output is correct |