#include <time.h>
#include <iostream>
using namespace std;
 
void delay(int seconds){
clock_t start = clock();
clock_t lay = (clock_t)seconds*CLOCKS_PER_SEC;
while((clock()-start)<lay)
;
}
int main(){
static int delay_time=1;
const unsigned int max_wait_time=5;//seconds
clock_t start = clock();
while(true){
start = clock();
 
//function place here begin
//your can use i for example as run(&i); to get the value i
//that suppose the function run have got a result
int i=1;
//cout<<"input:"<<endl;
//cin>>i;
//cout<<"output:"<<i<<endl;
//if i is zero,reset delay time
//function place here end
 
if ( (clock()-start) < delay_time*CLOCKS_PER_SEC && delay_time < max_wait_time){
delay_time++;
cout<<"s++\n";
}
 
//reset condition, may can use one condition for this
if ( (clock()-start) > 2*max_wait_time*CLOCKS_PER_SEC or i==0){
delay_time=1;
cout<<"s=1\n";
}
cout<<"delay "<<delay_time<<" seconds.\n";
delay(delay_time);
}
return 0;
}