To count open blocks, we need to count how many curly braces get opened and closed on each line, so we need to count { and } Write a function int countChar(string line, char c); that scans the line and returns the number of occurrences of the character c. Write a new program indent.cpp that enhances the program from the previous task. As it reads the input line by line, it should also count the number of open and closed { } in it, and keep track of how many blocks is currently open at the beginning of each line. In the listing below, the number of open blocks is shown on the left: int main(){ 1 // Hi, I'm a program! int x - 1; 1 for (int i = e; i < 10; i+) { cout < < i; 2 cout < < endl3; } 1 Then instead of printing the number of open blocks, add that number of tabs '\t' at the beginning of each line, and you will get: int main(){ // Hi, I'm a program! int x = 1; for (int i = 0; i < 10; i++) { cout < < i; cout < < endl; } // Shortcomings of our program: No support for loops and if statements that don't have curly braces. For example, if (c -- 'A') S = S + C; will be incorrectly indented as if (c 'A') == S = s + C; No support for // and * */. Commented out curly braces should not affect indentation Symbols {, } inside string and char literals are misinterpreted as blocks if (true) { s = "{{"; t = "ABC"; } will be incorrectly indented as if (true) { s = "{{"; t = "ABC"; }