#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

#include <malloc.h>

#include <stdlib.h>

unsigned n, i;
int *a = NULL;

void minpos();
void aver();
void output();

void input() {
    printf("size of array:");
    scanf("%d", &n);
    a = (int*)malloc(n*sizeof(int));
    for (i = 0; i < n; i++){
        printf("a[%d]=", i);
        scanf("%d", &a[i]);
    }

    for (i = 0; i < n; i++){
        printf("\na[%d]=%d", i, a[i]);
    }

}
void output(){
    for (i = 0; i < n; i++){
        printf("\na[%d]=%d", i, a[i]);
    }
}

int main(void) {

    input(a);

    minpos(a);

    aver(a);

    output(a);

    free(a);

    return 0;

}

void minpos(){

    int _min = -1;

    for (i = 0; i<n; i++){
        if (a[i] <= 0 ){
            continue;
        }
        if (_min == -1){
            _min = a[i];
            continue;
        }
        if (_min > a[i]){
            _min = a[i];
            continue;
        }
    }

    if (_min < 0) {
        printf("\nERROR");
    } else {
        printf("\nA min = %d", _min);
    }

}

void aver(){
    int evenMax = -1;
    int id = -1;
    for (i = 0; i<n; i++){
        if (a[i] % 2 == 1){
            continue;
        }
        if (evenMax == -1){
            evenMax = a[i];
            id = i;
        }
        if (evenMax <= a[i]){
            evenMax = a[i];
            id = i;
        }
    }
    if (id < 0) {
        printf("error in even elements\n");
        return;
    }
    int cnt = 0;
    int sum = 0;
    for (i = id + 1; i<n; i++){
        cnt = cnt + 1;
        sum = sum + a[i];
    }
    if (cnt < 0) {
        printf("error in even elements\n");
        return;
    }
    double ans = (double)sum / (double)cnt;
    printf("\naverage = %lf\n", ans);
}