Submission

Score: 0

User: nate213121

Problemset: ประลอง

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-05 14:49:52

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n;
    cin >> n;
    vector<int> columnHeights(n);
    int maxHeight = 0;
    for(int i = 0; i < n; i++)
    {
        cin >> columnHeights[i];
        maxHeight = max(maxHeight, columnHeights[i]);
    }

    vector<vector<int>> grid(maxHeight + 1, vector<int>(n));

    for(int col = 0; col < n; col++)
    {
        int currRow = maxHeight;
        int height = columnHeights[col];
        for(int x = 0; x < height + 1; x++)
        {
            grid[currRow][col] = 1;
            currRow--;
        }
    }

    /*for(int i = 0; i < maxHeight + 1; i++)
    {
        for(int j = 0; j < n; j++)
        {
            cout << grid[i][j];
        }
        cout << endl;
    }*/
    int total = 0;
    for(int row = 0; row < maxHeight + 1; row++)
    {
        int col = 0;
        while(col < n)
        {
            if(grid[row][col] == 1)
            {
                col++;
                int airCount = 0;
                while(col < n && grid[row][col] == 0)
                {
                    airCount++;
                    col++;
                }
                if(col < n && grid[row][col] == 1)
                {
                    total += airCount;
                }
            }
            else
            {
                col++;
            }
        }
    }
    cout << total;
    return 0;
}