Time Conversion Hacker Rank Solution in C

Time Conversion Hacker Rank Solution in C

I am only giving you the required timeConversion() function
because main() is already written there.

char* timeConversion(char* s) {

/*

* Write your code here.

*/

if(s[8]=='P' && (s[0]!='1'|| s[1]!='2'))

{

s[0]=s[0]+1;

s[1]=s[1]+2;

s[8]='\0';

}

if(s[8]=='A' && s[1]=='2' )

{

s[0]='0';

s[1]='0';

s[8]='\0';

}

if(s[8]=='A' || s[8]=='P')

{

s[8]='\0';

}

return s;

}

Grading Students Hacker Rank Solution in C

Grading Students  Hacker Rank  Solution in C

#include<stdio.h>

int main()
{
int grades[200], n,i,r,r1;
 
scanf("%d",&n);
for(i=0;i<n;i++)
{
    scanf("%d",&grades[i]);

}

    for(i=0;i<n;i++)
    {
        if(grades[i]>37 && grades[i]<=100)
        {
            r1=grades[i]%10;
  if(r1<=5){
r=grades[i]%5;
            if(r>=3)
            {
                grades[i]=(grades[i]/10)*10+5;
            }
  }
  else if(r1>5)
  {
r=grades[i]%5;
            if(r>=3)
            {
                grades[i]=(grades[i]/10)*10+10;
            }
  }
        }
     
    }
for(i=0;i<n;i++)
{
    printf("%d\n",grades[i]);

}
return 0;
}