View Code of Problem 104

#include<stdio.h>
int main(){
int a,b,v1,v2,n,t;
int p1,p2;
float time;
while(scanf("%d%d%d%d",&n,&v1,&v2,&t)!=EOF)
{  
   p1=v1*t;
   p2=v2*t+n;
  if(p1>=p2){
  time=n/(v1-v2)*1.0;
  pritnf(".2f",time);
  }
  else{
   printf("NO\n");
  }




}



}
/*
Main.c: In function 'main':
Main.c:12:3: warning: implicit declaration of function 'pritnf' [-Wimplicit-function-declaration]
   pritnf(".2f",time);
   ^
Main.c:3:7: warning: unused variable 'b' [-Wunused-variable]
 int a,b,v1,v2,n,t;
       ^
Main.c:3:5: warning: unused variable 'a' [-Wunused-variable]
 int a,b,v1,v2,n,t;
     ^
/tmp/ccr8u6y3.o: In function `main':
Main.c:(.text+0x60): undefined reference to `pritnf'
collect2: error: ld returned 1 exit status
*/