[Solved] Why do I really have to input first?

Question

I made a cpp programme to guess a random number. But the inputs affect outputs. What can I do?

Answer 1

srand(time(NULL)); should be used only once. You're using it in a loop. The loop isn't really needed. If you want to generate a random number between 1 and 100, use rand() % 100 + 1.

The main problem is that in line 20, you need to cin guess, not number.

https://code.sololearn.com/cqtqs8OooZk0/?ref=app

Answer 2

If my math is correct, 100+1-1 = 100

Answer 3

He specifically asked how to generate a random number between 1 and 100. I told him how to do it. Case closed 😶

Answer 4

Anna

" [...] If you want to generate a random number between 1 and 100, use rand() % 100 + 1."

lower bound + rand() % ( upper band + 1 - lower band)
1 + rand() % ( 100 + 1 - 1 )

_____
https://en.cppreference.com/w/c/numeric/random/rand

Answer 5

Anna
What about different ranges like so [10, 100]

10 + rand() % (100 + 1 - 10);

Answer 6

Yes, or different programming languages

Answer 7

Anna
The question's explicitly tagged "cpp" and also the OP's code is in C++, as well. So, talking about the nature of randomness and underlying mechanic in a different language is out of the question, here. Maybe we could argue over that in a different post, or perhaps a different forum. ;)

Answer 8

Anna LOL!

Answer 9

Start by showing the code.

Answer 10

SSGSS_Goku

Anna is right, you want to use time(0) once.

SL will give you one time value and making every number random after srand(time(0)) the same.

Answer 11

SSGSS_Goku

Perhase in the future. You can ask at [e-mail].

- Also the best answer does nothing for the user asking the question.

Please check Anna 's answer.

Answer 12

SSGSS_Goku

This is a code. One I am showing you.

Linking makes it easy for others to help solve issue and debug.

https://code.sololearn.com/c4yx0UjmCnBS/?ref=app

Answer 13

The code would only as for input once on SL.

A compiler is needed to have multiple guesses.

Answer 14

sorry
what do u mean

Answer 15

what does the code mean?

Answer 16

no
i mean
it says "Looks like your program need input"

Answer 17

i mean
why cant i input during processing the code

Answer 18

oh thx
so SoloLearn may make changes for input

Answer 19

ok thx for all