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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) {
    if (n == 0) return;

    int first = -1, second = -1, third = -1;
    if(n<2){
        printf("%d",arr[0]);
        return;
    }
    if(n == 2){
        if(arr[0] > arr[1]) {
            printf("%d %d",arr[0],arr[1]); 
            return;
        }
        else {
            printf("%d %d",arr[1],arr[0]);
             return;
        }
    }
    for (int i = 0; i < n; i++) {
        int val = arr[i];

        if (val > first) {
            third = second;
            second = first;
            first = val;
        } else if (val > second) {
            third = second;
            second = val;
        } else if (val > third) {
            third = val;
        }
    }

    printf("%d %d %d\n", first, second, third);
}

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