Ex. 1- Simple I/O in C++ Write a short C++ program which prompts the user for th

Question

Ex. 1- Simple I/O in C++ Write a short C++ program which prompts the user for the current year, the user's current age, and another year. The program should calculate the age that the user was or will be in the second year entered Input: three lines, the current year on the first, the current age on the second, and the other year on the third Output: one line showing the calculated age PART 2 Write a short C++ program which displays a menu for the user to choose between converting US dollars into Chinese RMB and Chinese RMB into US dollars. The user inputs the amount and the precision, then the program display the corresponding result. Note: use 1.00 USD = 6.20350 CNY as the exchange rate Precision means "how many digit are expected in the final result", e.g. 123.456 has precision 6 · Input: three lines, the first one being 1 for USD or 2 for CNY, the amount on the second one, and the precision on the third one; Output: one line showing the result of the conversion;

Explanation / Answer

PART -1

Ans.

#include<bits/stdc++.h>

using namespace std;

int main()

{

int curr_yr, curr_age, next_yr, next_age;

cin>>curr_yr>>curr_age>>next_yr;

next_age = curr_age + (next_yr - curr_yr) ;

cout<< next_age;

return 0;

}

PART- 2

Ans.

#include<bits/stdc++.h>

using namespace std;

int main()

{

int usdORcny, amount, precision;result;

cin>>usdORcny>>amount>>precision;

if(usdORcny == 1)

{

result = amount * 6.2035 ;

}

else

{

result = amount / 6.20350;

}

cout<<std::setprecision(precision)<<result<<endl;

return 0;

}

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