оиб лаба 3 ver.2

#include <iostream>
#include <string>
#include <cmath>
#include <Windows.h>

using namespace std;

int main()
{
    setlocale(LC_ALL, "Russian");
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);
    string W;
    int sq = 0;
    cout << "Введите слово: ";
    cin >> W;
    cout << "Длина: " << W.length() << endl;
    int le = W.length();
    for (int i = 0; i < le * le; i++) {
        if (le < pow(i, 2)) {
            sq = i*i;
            break;
        }
    }
    sq = sqrt(sq);
    cout <<"Сторона получившегося квадрата: " << sq <<endl;
    int f = W.length();
    while (W.length() < sq*sq) {
        W += 'а' + rand() % 33;
    }
    cout << "Новое слово: " << W <<endl;


    int sq2 = sq;
    int** mat;
    mat = new int* [sq];                    //////////двумерный динамический массив
    for (int i = 0; i < sq; i++) {
        mat[i] = new int [sq2];
    }
    int sh = 1;
    int l = 0;
    for (int i = 0; i < sq; i++) {
        for (l = 0; l < sq; l++) {
            mat[i][l] = 0;
        }
    }

    l = 0;
    for (int sh = 0; sh < sq * sq;) {
        for (int i = 0; i < sq;) {
            mat[i][l] = sh;
            sh++;
            i++;
            for (l; l < sq;) {
                if (mat[i][l] != 0) {
                    break;
                }
                mat[i][l] = sh;
                sh++;
                while (i > 0) {
                    i--;
                    l++;
                    mat[i][l] = sh;
                    sh++;
                }
                l++;
                mat[i][l] = sh;
                sh++;
                while (l > 0) {
                    l--;
                    i++;
                    mat[i][l] = sh;
                    sh++;
                }

            }
            if (i == sq - 1) {
                l++;
                mat[i][l] = sh;
                sh++;
                while (l < sq - 1) {
                    i--;
                    l++;
                    mat[i][l] = sh;
                    sh++;
                }
                i++;
                mat[i][l] = sh;
                sh++;
                while (i < sq - 1) {
                    l--;
                    i++;
                    mat[i][l] = sh;
                    sh++;
                }
                if ((i == sq - 1) && (l == sq - 1)) {
                    break;
                }
            }
        }
    }

    for (int i = 0; i < sq; i++) {
        for (l = 0; l < sq; l++) {
            cout << mat[i][l] << " ";
        }
        cout << endl;
    }

}