Is This a Long Challenge | Problem Code: ICM2004

help
1

codechef.com/problems/ICM2004
I am an amateur and need help with this problem.
I don’t understand what I am doing wrong here.
Sample input and some other inputs are giving desired output just as the problem expects.
Time limit is not being exceeded.
Here is my code in C.

#include<stdio.h>
#include<malloc.h>
#define MOD 10000000007
int main()
{
char S,C;
int T,N,Q,L,R,p,q,type,i,tempP,tempQ;
scanf(“%d”,&T);
while(T–)
{
scanf(“%d”,&N);
S=(char)malloc(sizeof(char)*N);
scanf(“%s”,S);
scanf(“%d”,&Q);
while(Q–)
{

    	scanf("%d",&type);
    	if(type==1)
    	{
  		scanf("%d%d\n%c",&L,&R,&C);
  		if(C=='A'||C=='B')
  		{
  		    for(i=L;i<=R;i++)
  		    S[i-1]=C;
  		}
  	}
  	else
  	{
  		scanf("%d%d%d%d",&L,&R,&p,&q);
  		for(i=L;i<=R;i++)
  		{
  			if(S[i-1]=='A')
  			{
  				tempP=p-q;
  				tempQ=p+q;										
  			}
  			else
  			{
  				tempP=p+q;
  				tempQ=q-p;					
  			}
  			p=tempP;
  			q=tempQ;
  		}
  		printf("%d %d\n",p%MOD,q%MOD);
  	}
  }
  free(S);

}
return 0;
}

Any and all help is appreciated.
Thankyou.