Algorithm
Problem Name: beecrowd | 2758
Problem Link: https://www.beecrowd.com.br/judge/en/problems/view/2758
Floating Number Input and Output
By Roberto A. Costa Jr, UNIFEI 
Brazil
Timelimit: 1
Your teacher would like to make a program with the following characteristics:
- Create two variables to store real numbers of simple precision;
- Create two variables to store double precision real numbers;
- Read the first simple precision number that will always have a decimal;
- Read the second simple precision number that will always have two decimal places;
- Read the first double precision number that will always have three decimal places;
- Read the second double precision number that will always have four decimal places;
- Print the letter A, a blank, the equals sign, a blank, the number stored in the first variable read in step 3, a comma, a blank, the letter B, a blank, the sign of equal, a space, the number stored in the second variable read in step 4. Do not forget to skip line;
- Print the letter C, a blank, the equal sign, a blank, the number stored in the first variable read in step 5, a comma, a blank, the letter D, a blank, the sign of equal, a space, the number stored in the second variable read in step 6. Do not forget to skip line;
- Repeat procedure 7, printing the numbers with one decimal place;
- Repeat procedure 8, printing the numbers with one decimal place;
- Repeat procedure 7, printing the numbers to two decimal places;
- Repeat procedure 8, printing the numbers to two decimal places;
- Repeat procedure 7, printing the numbers to three decimal places;
- Repeat procedure 8, printing the numbers to three decimal places;
- Repeat procedure 7, printing the numbers to three decimal places and in the form of scientific notation with the character E;
- Repeat procedure 8, printing the numbers to three decimal places and in the form of scientific notation with the character E;
- Repeat procedure 7, printing only the whole part of the number;
- Repeat procedure 8, printing only the entire part of the number.
Input
The input consists of several test files. Each test file has two rows. In the first line there are two real numbers A and B (-1000.0 ≤ A, B ≤ 1000.0), separated by white space. In the second line there are two real numbers C and D (-1000.0 ≤ C, D ≤ 1000.0), separated by white space. As shown in the following input example.
Output
For each file in the input, you have an output file. The output file has twelve rows as described in item 7 and 8. As shown in the following output example.
| Input Samples | Output Samples |
|
1.2 3.45 3.451 3.4516 |
A = 1.200000, B = 3.450000 C = 3.451000, D = 3.451600 A = 1.2, B = 3.5 C = 3.5, D = 3.5 A = 1.20, B = 3.45 C = 3.45, D = 3.45 A = 1.200, B = 3.450 C = 3.451, D = 3.452 A = 1.200E+00, B = 3.450E+00 C = 3.451E+00, D = 3.452E+00 A = 1, B = 3 C = 3, D = 3 |
|
2127.9 -821.45 -1020.456 1352.4548 |
A = 2127.899902, B = -821.450012 C = -1020.456000, D = 1352.454800 A = 2127.9, B = -821.5 C = -1020.5, D = 1352.5 A = 2127.90, B = -821.45 C = -1020.46, D = 1352.45 A = 2127.900, B = -821.450 C = -1020.456, D = 1352.455 A = 2.128E+03, B = -8.215E+02 C = -1.020E+03, D = 1.352E+03 A = 2128, B = -821 C = -1020, D = 1352 |
Code Examples
#1 Code Example with C Programming
Code -
C Programming
#include <stdio.h&t;
int main(){
float A, B;
double C, D;
char STR[10];
scanf("%f%f%lf%lf",&A,&B,&C,&D);
printf("A = %f, B = %f\nC = %lf, D = %lf\n",A, B, C, D);
printf("A = %.1f, B = %.1f\nC = %.1lf, D = %.1lf\n",A, B, C, D);
printf("A = %.2f, B = %.2f\nC = %.2lf, D = %.2lf\n",A, B, C, D);
printf("A = %.3f, B = %.3f\nC = %.3lf, D = %.3lf\n",A, B, C, D);
sprintf(STR,"%.3E",A); STR[9] = '\0';
printf("A = %s,",STR);
sprintf(STR,"%.3E",B); STR[9] = '\0';
printf(" B = %s\n",STR);
sprintf(STR,"%.3lE",C); STR[9] = '\0';
printf("C = %s,",STR);
sprintf(STR,"%.3lE",D); STR[9] = '\0';
printf(" D = %s\n",STR);
printf("A = %d, B = %d\nC = %d, D = %d\n",(int)A,(int)B,(int)C,(int)D);
return 0;
}
Input
Output
#2 Code Example with C++ Programming
Code -
C++ Programming
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float a, b;
double c, d;
cin >> a >> b >> c >> d;
cout << "A = " << fixed << a << ", B = " << fixed << b << endl;
cout << "C = " << fixed << c << ", D = " << fixed << d << endl;
cout << "A = " << setprecision(1) << a << ", B = " << setprecision(1) << b << endl;
cout << "C = " << setprecision(1) << c << ", D = " << setprecision(1) << d << endl;
cout << "A = " << setprecision(2) << a << ", B = " << setprecision(2) << b << endl;
cout << "C = " << setprecision(2) << c << ", D = " << setprecision(2) << d << endl;
cout << "A = " << setprecision(3) << a << ", B = " << setprecision(3) << b << endl;
cout << "C = " << setprecision(3) << c << ", D = " << setprecision(3) << d << endl;
cout << "A = " << scientific << uppercase << setprecision(3) << a << ", B = " << setprecision(3) << b << endl;
cout << "C = " << setprecision(3) << c << ", D = " << setprecision(3) << d << endl;
cout << fixed;
cout << "A = " << setprecision(0) << a << ", B = " << setprecision(0) << b << endl;
cout << "C = " << setprecision(0) << c << ", D = " << setprecision(0) << d << endl;
return 0;
}
Input
Output