need help whit C++

#include<iostream.h>

#include<conio.h>  // xtra include needed

main(){  

int m,s;     // minutes,seconds

cout<<"\n\n\n\t\t\t     A COUNTDOWN TIMER \n"; 

cout<<enter time in MINUTES here \t = \t";cin>>m;

cout<<enter time in SECONDS here \t = \t";cin>>s;    

cout<<"\n\n\n\n\t press any key to start...!!!"; 

getch();

clrscr();  

cout<<"\n\n\n\t\t\t     A COUNTDOWN TIMER \n"; 

cout<<"\n\n\n\t\t TIME REMAINIG \n\n"; 

cout<<"\t mins: \t\t seconds: "; 

for(int min=m;min>0;min--){

for(int sec=59;sec>=;sec--){ 

sleep(1); cout<<"\r"<<min<<"\t"<<sec; } 

} 

for(int rem=s;rem>=0;rem--){cout<<"\r"<<min<<"\t"<<rem;} 

cout<<"\n\n  ENDED "; return 0; 

}              

 /* end of program */   /* developed by piyush */