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Submission #927862

# Submission time Handle Problem Language Result Execution time Memory
927862 2024-02-15T12:18:07 Z Unforgettablepl Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
15 / 100
 1 ms 460 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

const int INF = 1e15;

int calc(vector<bool> arr,bool start){
    arr.insert(arr.begin(),start);
    int ans = 0;
    for(int i=1;i<arr.size();i++){
        int idx = find(arr.begin()+i, arr.end(),!arr[i-1])-arr.begin();
        ans+=idx-i;
        arr.erase(arr.begin()+idx);
        arr.insert(arr.begin()+i,!arr[i-1]);
    }
    return ans;
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    int red = 0;
    int green = 0;
    vector<bool> arr;
    for(int i=1;i<=n;i++){
        char a;
        cin>>a;
        if(a=='R') { red++; arr.emplace_back(true);}
        else {green++;arr.emplace_back(false);}
    }
    if(abs(red-green)>1){
        cout << "-1\n";
        return 0;
    }
    int ans = INF;
    if(red<=green)ans=min(ans, calc(arr,true));
    if(green<=red)ans=min(ans, calc(arr,false));
    cout << ans << '\n';
}

Compilation message

joi2019_ho_t3.cpp: In function 'long long int calc(std::vector<bool>, bool)':
joi2019_ho_t3.cpp:11:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i=1;i<arr.size();i++){
      |                 ~^~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -