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Submission #332290

# Submission time Handle Problem Language Result Execution time Memory
332290 2020-12-01T23:58:29 Z alien_lover Hacker (BOI15_hac) C++14
0 / 100
 1 ms 364 KB 
#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

typedef long long ll;

#define all(x) begin(x), end(x)
#define sz(x) (int) x.size()

const int PRIME = 1e9 + 7;



int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    // freopen("TASK_NAME.in", "r", stdin);
    // freopen("TASK_NAME.out", "w", stdout);
    // Use scanf printf

    int n;
    cin >> n;
    
    vector<int> scores(n);
    int maxNumHacked = (n + 1) / 2;
    int totSum = 0;

    for(int i = 0; i < n; i++){
        cin >> scores[i];
        totSum += scores[i];
    }

    int windowScore = 0;
    for(int i = 0; i < maxNumHacked; i++){
        windowScore += scores[i];
    }

    int minDiff = windowScore * 2 - totSum;
    int bestScore = windowScore;

    for(int i = 0; i < n; i++){
        // compare window starting at i
        // subtract element at i, add next element
        if(abs(windowScore * 2 - totSum) < minDiff && windowScore > totSum - windowScore){
            minDiff = windowScore * 2 - totSum;
            bestScore = windowScore;
        }

        // maxScore = min(minDiff, windowScore);

        windowScore -= scores[i];
        windowScore += scores[(i + maxNumHacked) % n];

    }
    cout << bestScore << '\n';
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 0 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 0 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 0 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -