What will be the output of the following C++ code? #include using namespace std; int main() { int a; a = 5 + 3 * 5; cout << a; return 0; } a) 35 b) 20 c) 25 d) 30

Coorect the Following C++ code: #include <bits/stdc++.h>#include <iostream>#include <fstream>#include <string>#include <cctype> using namespace std; // Function to print available currencies for exchangevoid printCurrencies() {    cout << "Available currencies for exchange: " << endl;    cout << "SAR --> Saudi Arabia Riyal" << endl;    cout << "KWD --> Kuwaiti Dinar" << endl;    cout << "QAR --> Qatar Riyal" << endl;    cout << "AED --> United Arab Emirates Dirham" << endl;    cout << "BHD --> Bahraini Dinar" << endl;    cout << "OMR --> Omani Rial" << endl;} // Function to convert currencydouble convertCurrency(string fromCurrency, string toCurrency, double amount) {    ifstream exchangeRateFile("ExchangeRate.txt"); // Open file for reading    string line;        double desiredRate=0;        while (getline(exchangeRateFile, line)) { // Read file…

C++ complete magic Square #include <iostream> using namespace std; /*int f( int x, int y, int* p, int* q ){if ( y == 0 ){p = 0, q = 0;return 404; // status: Error 404}*p = x * y; // product*q = x / y; // quotient return 200; // status: OK 200} int main(){int p, q;int status = f(10, 2, &p, &q);if ( status == 404 ){cout << "[ERR] / by zero!" << endl;return 0;}cout << p << endl;cout << q << endl; return 0;}*/ /*struct F_Return{int p;int q;int status;}; F_Return f( int x, int y ){F_Return r;if ( y == 0 ){r.p = 0, r.q = 0;r.status = 404;return r;}r.p = x * y;r.q = x / y;r.status = 200;return r;} int main(){F_Return r = f(10, 0);if ( r.status == 404 ){cout << "[ERR] / by zero" << endl;return 0;}cout << r.p << endl;cout << r.q << endl;return 0;}*/ int sumByRow(int *m, int nrow, int ncol, int row){ int total = 0;for ( int j = 0; j < ncol; j++ ){total += m[row * ncol + j]; //m[row][j];}return total; } /*…

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