The timer is not stopping

[aravind12345]

Hello my problem in this program is that it dose not stop at 0 it also goes to negative numbers please someone fix this

#include <iostream>
#include <conio.h>
#include <windows.h>
void newline();
using namespace std;
int main()
{
    int hours = 0;
    int minutes = 0;
    int seconds = 0;
    cout<< "Please enter houres: ";
    cin>>hours;
    cout<< "Enter a minutes: ";
    cin>>minutes;
    cout<<"Enter seconds: ";
    cin>>seconds;
    for(;;){
            newline();
            
cout<< hours <<" : "<< minutes <<" : "<< seconds << endl;
Sleep(750);
            --seconds;
            if(seconds == 0){
            --minutes;
            seconds = 60;
            }
            if ( minutes == 0){
                   -- hours;
                   minutes = 0 ;
                   }
            if ( hours == 0){
                 hours = 0;
                }                 
                 
                 }
                 
return 0;
}               
void newline(){
     cout<<"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
     }

[aravind12345]

This is a c++ program

[weaknessforcats]

There's no exit to your for loop.

Note also that --minutes will produce -1 minutes if minutes was zero to start with.

I suspect you want to stop your timer if
(hours && minutes && seconds) == 0
but I don't see code like that in the loop:

[donbock]

Line 29: probably want to set minutes to 60.
Line 32:this doesn't accomplish anything.
Lines 11-16: you should validate the inputs.