In this Print Pretty in C++ HackerRank Problem, Given a text file with many lines of numbers to format and print, for each row of space-separated doubles, format and print the numbers using the specifications in the Output Format section below.
Input Format
The first line contains an integer, , the number of test cases.
Each of the subsequent lines describes a test case as space-separated floating-point numbers: , , and , respectively.
Constraints
- Each number will fit into a double.
Output Format
For each test case, print lines containing the formatted , , and , respectively. Each , , and must be formatted as follows:
- : Strip its decimal (i.e., truncate it) and print its hexadecimal representation (including the prefix) in lower case letters.
- : Print it to a scale of decimal places, preceded by a or sign (indicating if it’s positive or negative), right justified, and left-padded with underscores so that the printed result is exactly characters wide.
- : Print it to a scale of exactly nine decimal places, expressed in scientific notation using upper case.
Sample Input
1
100.345 2006.008 2331.41592653498
Sample Output
0x64
_______+2006.01
2.331415927E+03
Explanation
For the first line of output, (in reverse, ).
The second and third lines of output are formatted as described in the Output Format section.
Print Pretty in C++ HackerRank solution
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
int T; cin >> T;
cout << setiosflags(ios::uppercase);
cout << setw(0xf) << internal;
while(T--) {
double A; cin >> A;
double B; cin >> B;
double C; cin >> C;
/* Enter your code here */
// LINE 1
cout << hex << left << showbase << nouppercase; // formatting
cout << (long long) A << endl; // actual printed part
// LINE 2
cout << dec << right << setw(15) << setfill('_') << showpos << fixed << setprecision(2); // formatting
cout << B << endl; // actual printed part
// LINE 3
cout << scientific << uppercase << noshowpos << setprecision(9); // formatting
cout << C << endl; // actual printed part
}
return 0;
}