C++ Syntax error: no match for 'operator=' (operand types are 'std::__cxx11::string' {aka 'std::__cxx11::basic_string'} and '') (solved)

Program:

#include <iostream>

using namespace std;

int main()

{

    srand(123);

    int vertices = 10;

    string A[vertices][vertices];

    for ( int i = 0; i < vertices; ++i )

    {

        for ( int j = 0; j < vertices; ++j )

        {

            A[i][j] = to_string{ rand()%100+1 };

        }

    }

    return 0;

}

Solution: Change braces { .. } to parentheses ( .. )