#include #include using namespace std; int main() { string x,y,k; char p; int a,b,c,d,e; y = "HAN210"; int m = y.length(); int z,amt=0; cout << "Enter your name: " << endl; cin >> x; outer: cout << "Enter your account number:" << endl; cin >> k; int l = k.length(); if(l==m) { if (k==y) { acc: cout << "Select one option: " << endl << "1: Check Your Balance" << endl << "2: Add Amount" << endl << "3: Withdraw Amount" << endl << "4: Ext" << endl; cin >> z; switch(z) { case 1: cout << "Check Your Balance:" << amt << endl; cout << "would you like to continue?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto acc; } break; case 2: cout << "Add Amount:" << endl; cin >> a; amt = amt +a; cout << "would you like to continue?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto acc; } break; case 3: cout << "Withdraw Amount:" << endl; cin >> b; amt = amt - b; cout << "would you like to continue?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto acc; } break; case 4: goto end; break; default: cout << "Choose a valid number" << endl << "would you like to retry?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto acc; } break; } } else { cout << "Wrong account number " << endl << "would you like to retry?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto outer; } } } else { cout << "Number of digits not matching" << endl << "would you like to retry?[Y/N]"; cin >> p; if (p=='Y'||p=='y') { goto outer; } } end: getch(); }

Example code