Question

How to find the second biggest number in a set of random numbers in C++

Answer 1

#include <iostream>
#include <ctime>

int findSecondMax(int total, int rndmax) {
    int max, before_max, n;

    max = before_max = n = rand() % rndmax + 1;
    std::cout << n << std::endl;

    for (int i = 1; i < total; ++i) {
        n = rand() % rndmax + 1;
        std::cout << n << std::endl;
        if (n > max) {
            before_max = max;
            max = n;
        } else if (n > before_max) {
            before_max = n;
        }
    }

    return before_max;
}

int main() {
    std::srand(static_cast<unsigned>(std::time(nullptr)));

    int secondMax = findSecondMax(10, 100);
    
    std::cout << "The second biggest number is: " << secondMax << std::endl;
}


/*
run:

88
58
46
11
79
55
56
92
18
56
The second biggest number is: 88

*/

 

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