Laba 1.3 (Unfinished ?)

#define _CRT_SECURE_NO_WARNINGS

#include <cstdlib>
#include <stdio.h>
#include <iostream>
#include <cstring>
#include <cmath>
#include <iomanip>

using namespace std;

void base(char name[], char num[], char mark[], const int k) {
    int z = 0, inum = 0, h = 0;
    char qName[255]{};
    cout << "Enter num of students: " << endl;
    cin >> inum;
    cin.ignore();
    for (int m = 1; m <= inum; m++) {
        cout << "student " << m << ":" << endl;
        cout << "Enter name: " << endl;
        if (inum == 1){ cin.get(name,255); }

        cin.getline(name, k);
        cout << "Enter zalik: " << endl;
        cin.getline(num, k);
        cout << "Enter mark: " << endl;
        cin.getline(mark, k);
        for (int i = 0; i<strlen(mark); i++) {
            if (isdigit(mark[i]) && (int(mark[i]) <= 51) && (48 <= int(mark[i]))) {
                if (int (mark[i]) < 48){
                    cout << "Wrong marks!" << endl;
                    exit (0);
                }
                z++;
                for (int i(0); i <= strlen(name); i++){
                            qName[i+h] = name[i];
                        if (i+h == strlen(name) - 1){
                            h = h + i + 1;
                            qName[h] = 35;
                            h = i + 2;
                            break;
                        }
                }
                break;
            }
        }
    }
    cout << "Students with bad marks: " << endl;
    for (int i(0); i <= strlen(qName) - 1; i++){
        if (qName[i] == 35){ qName[i] = 32; cout << endl << "--------------" << endl; }
        else
        {
            cout << qName[i];
        }
    }
    cout << '\n';
}
int main() {
    const int k = 255; // length of array
    char name[k];// array
    char num[k];
    char mark[k];
    base(name, num, mark, k);
    return 0;
}