oj.uz

Submission #643671

# Submission time Handle Problem Language Result Execution time Memory
643671 2022-09-22T18:25:21 Z ErXiM Miners (IOI07_miners) C++14
0 / 100
 23 ms 1640 KB 
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <algorithm>
using namespace std;

const int MAXN = 1e5+5;

int n;
int dostawy[MAXN];
int dp[2][4][4][4];

inline int ore (int a, int b, int c) {
    int x = 0;
    if (a == 1 || b == 1 || c == 1){
        x++;
    }
    if (a == 2 || b == 2 || c == 2){
        x++;
    }
    if (a == 3 || b == 3 || c == 3){
        x++;
    }
    return x;
}
int main() {
    int n;
    cin >> n;
    string input;
    cin >> input;
    for(int i = 0;i<n;i++){
        if(input[i]=='M'){
            dostawy[i] = 1;
        }
        else if(input[i]=='F'){
            dostawy[i] = 2;
        }
        else{
            dostawy[i] = 3;
        }
    }
    int cur = 0;
    for(int k=n-1; k>=0; k--){ //looking at deliveries from the back
       for(int a=0; a<=3; a++){
          for(int b=0; b<=3; b++){
             for (int c=0; c<=3; c++){
                int left = ore(dostawy[k], dostawy[k-1], a) + dp[1-cur][dostawy[k-1]][b][c];
                int right = ore(dostawy[k], b, c) + dp[1-cur][b][dostawy[k-1]][a];
                dp[cur][a][b][c] = max(left, right);
             }
          }
       }

       cur = 1-cur;
    }
    cout << dp[1-cur][0][0][0];
    return 0;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 312 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 436 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 468 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 724 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #11
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 19 ms 1484 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #12
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 23 ms 1640 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -