| # | Problem | Pass Rate (passed user / total user) |
|---|---|---|
| 11112 | Big Number |
|
| 12134 | The Big Hammer Rise |
|
| 13552 | Easy math problems |
|
| 13601 | Ultimate caesar salad |
|
| 14413 | Temmie's college life |
|
Description
Replace the ??? in the following code so that the program can correctly compute
the square of the number entered by the user.
Assume that the input number is always an 8-digit positive integer.
* Note that the output format is always 16-digit wide with space prepended if needed.
For example,
(11111111)^2 = _123456787654321
_ is a space character.
#include <stdio.h>
/* 2016/09/22 */
int first4(int x){
return x/10000;
}
int last4(int x){
/* The operator % in C computes the remainder after division.
For example, the answer of 23%7 will be 2.*/
return x%10000;
}
int first8(int x){
return x/100000000;
}
int last8(int x){
return x%100000000;
}
int shift4(int x){
return x*10000;
}
int main(void){
int x;
int a, b;
int c1, c2, c3;
/* Assume that the input is always an 8-digit positive integer. */
scanf("%d", ???);
a = first4(x);
b = last4(x)
c3 = ???;
c2 = ???;
c1 = ???;
printf("%4d%08d%04d", ???, ???, ???);
/* %04d will display a 4-digit number and add 0 as padding before the number if necessary */
return 0;
}
Assume that the input 8-digit integer
x can be expressed by a*10000 + b .The square of x can be expressed as a*a*100000000 + 2*a*b*10000 + b*b .We may partition the computation into three parts.
Input
The input is always an 8-digit positive integer
Output
the square of input .
Note that you do not need to print ‘\n’ at the end of the output.
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Description
A famous streamer once said: " Abortion Uncle!! Begin abort!!! " The Abortion Uncle is also known as "The Big Hammer Rise". The famous streamer wants to know the exactly time "Big Hammer Rise" kill an enemy. Because he got a double kill, he know exacly two time which denote as a, b.
The famous streamer will give you two number a,b which are represented as float numbers and have two digit after the decimal point.
For example：
If a,b are ranged from 1~99, 1<= a , b < 100;
a,b will be like these forms： 18.00, 99.30, 71.22
You need to calculate ans = a*b, and ans should follow the rule:
if the number of digits after decimal point is less then four digits, then you need to print 0 to make it four digits.
For example: 18.56 -> 18.5600, 18 -> 18.0000, 18.9 -> 18.9000
If you tell him the right answer he will help you kill the ice bird.
( Note: you can use scanf("%d.%d %d.%d", &int, &int, &int, &int). Use %f may cause trouble because the precision of float type. )
( Note: you can use printf("%d.%04d\n", int/10000, int%10000); )
Input
input only contains two float number a,b ( 1<= a , b < 100 ) the two number are seperated by a blank.
Output
output contains only a float number which have four digit after the decimal point.
remember to print \n at the end of output.
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Description
Patrick is going to hand in his math homework tomorrow. He left his homework undone and played outside all day with Squidward. It’s now 3 am and Patrick doesn’t know how to finish these problems at all since he never studies. Therefore, he comes to you, the smartest person he knows, and hopes you can solve all of the problems in his homework book.
The problems are easy: given a math expression containing two numbers and an operator. Calculate the result rounded to 3rd decimal places.
For example, the answer of 12.1 + 7 is 19.100, and the answer of 7 / 3 is 2.333.
Patrick will bring you a Krabby Patty if you successfully answer all questions.
Input
Given a math expression containing two numbers x, y and a char c (‘+’, ‘-’, ‘*’ or ‘/’) seperating the numbers.
(-1000 ≤ x, y ≤ 1000)
Output
Output the answer, which is a floating point rounded to 3rd decimal places.
Please print '\n' at the end of the line.
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Description
Sometimes, the hackers would intercept the messages sent by Caesar. Since privacy is quite valued by Caesar, he discovers a new way of encryption.
The encryption process includes two steps:
- First, we would apply a specific number of right shifts (within [0, 25]) for each letter in the string. For instance, if we have a message "AAAAA", and we want to apply {1, 2, 3, 4, 5} of right shifts for each letter, then the encrypted message would be "BCDEF". We can regard the letter following Z as A again. For example, if we apply 3 right shifts on Y, it would be B.
- Second, we change every letter from uppercase to lowercase and lowercase to uppercase. For instance, if we have a shifted message "aBcDe", the final encrypted message would be "AbCdE". (It does not help for the encryption. Caesar does it for fun.)
Given a pair of plaintext and encrypted message, we can derive the encryption scheme, that is, how many right shifts are applied to each letter of the string. Caesar can't wait to have more salads! To order more salads, please help him to encrypt another given message by applying the encryption scheme.
Sample I/O's number of shifts: {1, 24, 5, 3, 21}.
Input
The input has three lines: Plaintext A, encrypted message A' of A, and another plaintext B to be encrypted. These strings contain only uppercase and lowercase letters (A-Z, a-z), and their length is all exactly 5.
Output
Print one line, the encrypted message B' of B.
Please remember to print '\n' at the end.
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Description
Temmie is a freshman at Tsinghua University. Upon enrollment, he learned about his student ID, which consists of a college code C and a string of numbers ID.
He is curious about what other people's student IDs represent, so based on the given college code and student ID, please calculate the following information according to the rules:
- Degree: If the alphabetical order of the college letter C is <= 'L', then the student is a "Bachelor", otherwise a "Master" (without quotation marks)
- Class: The third digit from the end of the student ID, where 1 represents 'A', 2 represents 'B', and so on (without quotation marks)
- Enrollment year: The number formed by the first three digits of the student ID
- Seat number: The number formed by the last two digits of the student ID
Hint: Please use strings in C to solve this problem.
Input
The input consists of only one line, containing a letter C and a string ID of length 10 composed of digits 0-9 (may have leading zeros), separated by a space.
Constraints
- C is an uppercase letter.
- The length of ID is 10. (May include leading zeros)
- for all i in [1,10], 0 ≤ idi ≤ 9
- id8 ≠ 0
Output
The output consists of four lines, each containing a string or an integer, representing the degree (string), class (string), enrollment year (integer), and seat number (integer).
"integer" means it doesn't include any unnecessary leading zeros.
Please remember to print "\n" at the end