My First article

Edit at 10/4/2023

A doggo

Her name is Momo

Get Paul.H’s stories in your inbox

Join Medium for free to get updates from this writer.

Remember me for faster sign in

A bird image template from Unsplash

Photo by Zdeněk Macháček on Unsplash

The first video of Mr.Beast

Mr.Beast’s first video

Leetcode 13: Roman to Integer

int romanToInt(char * s){
 int i=0;
 int ans=0;

 while(*(s+i) != '\0'){
  if(*(s+i)=='I'){
   if(*(s+i+1)=='V'){
    ans= ans+4;
    i++;
   }else if(*(s+i+1)=='X'){
    ans= ans+9;
    i++;
   }else{
    ans++;
   }
  }else if(*(s+i)=='V'){
   ans+=5;
  }else if(*(s+i)=='X'){
   if(*(s+i+1)=='L'){
    ans= ans+40;
    i++;
   }else if(*(s+i+1)=='C'){
    ans= ans+90;
    i++;
   }else{
    ans+=10;
   }
  }else if(*(s+i)=='L'){
   ans+=50;
  }else if(*(s+i)=='C'){
   if(*(s+i+1)=='D'){
    ans= ans+400;
    i++;
   }else if(*(s+i+1)=='M'){
    ans= ans+900;
    i++;
   }else{
    ans+=100;
   }
  }else if(*(s+i)=='D'){
   ans+=500;
  }else if(*(s+i)=='M'){
   ans+=1000;
  }
  i++;
 }
 return ans;
}

— — — — — — — — — — — — — — End of this test article — — — — — — — — — — — —