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hello, i have an integer array and i want to know wich is the bigger number in that array

example:

| 1 | 2 | 6 | 3 | 5 | 7 | -> the bigger number on the array is 7.

how do i make this??
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hello, i need to make a program that generates a random character.
after that the user have to type the same character on the keyboard
the objective of the program is to calculate the reaction time...

hello everybody

i would like to know how to use stdout to print the result of a function

this is what i have

char input[51];
fgets(input,51,stdin);

stdout -> I don't know how to use it

hello, i would like to know how can i put a '?' at the begining of a digit sequence ended by 2.

i've made a code but it doesn't work, this is what i did:


#include<stdio.h>

main() {
...