I need help with C++. Below is the input from the text file, at the very bottom is the code I need help modifying.

133 -167 - 79 196 / 13 125 139 -59 -168 163 17 / + / - + + + + -14 -46 54 128 * * % 147 2 + 10 / 45 * 191 % -188 % 171 45 * -132 % 31 % 93 + -90 - -91 % 176 - 80 147 - 89 + / 39 129 + 93 * -175 164 * 83 / % -93 163 - 4 * * 174 25 99 41 187 - 177 + / * % 105 33 % 1 / -37 27 -58 + 4 % + + 149 / -59 32 136 140 - / * 192 % 63 93 + + 167 % 21 -16 36 * - / 99 196 / 191 31 92 + * 57 - 58 198 * -57 + + 179 % 7 -102 -174 65 66 * / + - 37 193 / -17 28 103 109 * - 23 79 92 - -91 + 100 * + % + - 126 -3 + 111 18 % 35 / 163 - 119 78 + 73 124 191 + 44 57 168 - 14 / + -180 140 - * * + % 48 -38 -108 + + 131 -134 27 / 175 * 175 -90 - + % + 120 104 % 13 - 193 - 47 84 + -54 67 163 29 * % % + 159 13 * 2 100 56 47 / + * - 167 -152 * 168 192 -129 + 176 57 38 80 65 % + % / - * % 57 172 / -168 - 666 130 172 -82 -183 / - 117 - + 165 114 17 * / 154 % + 124 96 % + -133 173 + 9 107 - * 106 / 101 * -136 59 % * 159 -155 - 96 165 / 41 33 - 172 -148 - 148 38 -129 * / - 18 -137 -32 - % 67 126 103 % / 65 % -53 119 82 64 % 15 + / - % 176 51 75 68 / 46 123 57 % * * * + 122 109 74 102 116 182 - * * + % 15 110 164 43 -117 167 66 * 124 -155 + - - 64 155 % % + - + / 45 -57 * -81 * -41 - 83 122 167 113 101 / -33 -26 + - * - - 147 80 169 185 + 151 20 135 8 198 * / + * / - - * 141 122 + 156 123 * 2 -157 - 108 132 77 + 22 174 12 - 32 + % - * / 93 199 % 93 + 17 165 133 - 139 + * 93 - * 187 160 -177 5 - 117 + % 71 / 138 -153 % - * 32 1 64 72 + 108 * * 160 199 + * % -85 111 * + -136 144 - 123 149 149 * 15 171 123 % % -59 * - -184 178 % 22 170 - 60 * 25 71 * -131 192 - 57 9 - -137 -162 * % % % 71 -177 % 96 144 116 133 -69 176 42 * + % + % + 158 22 + 99 / -49 / -84 * 181 95 15 137 39 / -65 + / * + / 40 178 92 85 * 77 - + +

Here is the code I need help modifying.

#include #include #include #include

using namespace std;

int main() { //Taking name of input file as input string in; cout > in;

//String to read input file line by line string exp;

// Read from the text file ifstream MyReadFile(in);

int n; cout > n;

// Create a text file for output ofstream MyWriteFile("output.txt"); if (n == 2) { cout

// Use a while loop together with the getline() function to read the file line by line while (getline(MyReadFile, exp)) { int i = 0, num, flag = 0; //Flag variable to tell that whether the expression is a valid one or not stack s; //Stack for evaluation while (i

//Converting to integer if (exp[i] >= 48 && exp[i] 1) { b = s.top(); s.pop(); a = s.top(); s.pop(); switch (exp[i]) {

case '+': ans = a + b; s.push(ans); break;

case '-': ans = a - b; s.push(ans); break;

case '*': ans = a * b; s.push(ans); break;

case '/': ans = a / b; s.push(ans); break;

default: if (n == 1) cout 1) { if (n == 1) cout

// Close the file MyReadFile.close(); if (n == 2) MyWriteFile.close(); }

Quiz - Postfix Calculator 2 Modify your Postfix Calculator to read entries from a file, one line at a time. For those entries that are valid, compute the value and keep a running total. Display that sum and the number of invalid entries that were in the file. We will consider a postfix expression to be invalid if: An operation is encountered, but there are not at least two entries on the stack. The postfix expression has been consumed, but there is not exactly one entry remaining on the stack