My Code Shows Wrong Error

#1

I have tried for multiple test cases It gives correct ooutput but when i submit it shows wrong answer in all test cases.Please Help Sir/Ma’am

#2

@Devforlife07
send me your code then only i would be able to help

#3

import java.util.*;

class histogram {
static Stack st = new Stack<>();
static Scanner sc = new Scanner(System.in);

public static void main(String[] args) {
    int n = sc.nextInt();
    int[] a = new int[n];
    for (int i = 0; i < n; i++)
        a[i] = sc.nextInt();
    int ans = cal(a);
    System.out.println(ans);
}

public static int cal(int[] a) {
    int maxArea = 0;
    int i = 0;
    while (i < a.length) {
        if (st.isEmpty() || a[st.peek()] <= a[i]) {
            st.push(i++);
        } else {
            int top = st.peek();
            st.pop();
            int area = st.isEmpty() ? a[top] * i : a[top] * (i - st.peek() - 1);
            if (area > maxArea)
                maxArea = area;

        }
    }
    while (!st.isEmpty()) {
        int top = st.peek();
        st.pop();
        int area = st.isEmpty() ? a[top] * i : (a[top] * (i - st.peek() - 1));
        if (area > maxArea)
            maxArea = area;
    }

    return maxArea;
}

}

#4

@Devforlife07
hello please check your inbox and mark your doubt as resolved if you are satisfied with my response

#5

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