Find Top 3 Largest Values in an Array

Code

#include <stdio.h>
#include <stdint.h>

void find_top_3(uint8_t *arr, uint8_t n) {
    for (int i = 0; i < n - 1; i++) {
        for (int j = i + 1; j < n; j++) {
            if (arr[i] > arr[j]) {
                uint8_t tmp = arr[i];
                arr[i] = arr[j];
                arr[j] = tmp;
            }
        }
    }
    switch (n) {
        case 1:
        printf("%d", arr[0]);
        break;
        case 2:
        printf("%d %d", arr[1], arr[0]);
        break;
        default:
        printf("%d %d %d", arr[n-1], arr[n-2], arr[n-3]);
        break;
    }
}

int main() {
    uint8_t n;
    scanf("%hhu", &n);
    uint8_t arr[100];

    for (uint8_t i = 0; i < n; i++) {
        scanf("%hhu", &arr[i]);
    }

    find_top_3(arr, n);
    return 0;
}

Solving Approach

 

 

 

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Input

6 10 90 20 80 70 30

Expected Output

90 80 70