#include "header.h"

// File scope variables automatically initialized to bit string 000000
int 		Counts[256][256]; // Array of counts for dipthongs
unsigned char   uc[NMax+1];  	  // Array of Characters NMax #defined in header

int main(){
  //time_t	start, stop; 	// time()  version
  clock_t	start, stop;	// clock() version
  char		Format[20];	// Format String for scanf initialized imediately below
  unsigned char	cOld, cNew;
  int           i, j, nStart, n;
  
  // Initialize Format String for scanf 
  sprintf(Format, "%%%dc", NMax); 		
  //printf("%s\n", Format); // Uncomment for check of format
  
  //Start Timer
  //time(&start); 	// time()  version
  start = clock();	// clock() version
  
  // Get input and count
  // scanf returns 1 untill it returns -1 when it hits EOF
  scanf("%c", &cOld);  //Initialization for first value
  printf("cOld=%c\n", cOld);
  while(scanf(Format, uc)>0){
  	n = strlen(uc);
  	for(i=0;i<strlen(uc);i++){	// Skips zeroth value - already in cOld
  	  cNew = uc[i];
  	  Counts[cOld][cNew]++;  //Increments appropriate counter
  	  cOld=cNew;		 //Copies to cOld carries value from batch to batch
  	}
    }
 
 //Stop Timer
 //time(&stop);		// time()  version
 stop = clock(); 	// clock() version
 
 
 //Printing Output
 //Formatted differently for printable 32-127
 /*for(i=0;i<32;i++){
   	if(Counts[i][j]!=0){
   	 printf("%d\t\t%d\n", i, i, Counts[i]);
   	  } 
   	}
   */
  for(i=32;i<128;i++){
    for(j=32;j<128;j++){
      if(Counts[i][j]!=0){
   	 printf("{%d,%d}\t\t%d\n", i, j, Counts[i][j]);
   	 }
    }
  } 
   
  /*
  for(i=128;i<256;i++){
   	if(Counts[i]!=0){
   	 printf("%d\t\t%d\n", i, Counts[i]);
   	  } 
   	}
   */
   	
 //Printing timing
  //printf("\nElapsed time = %g Seconds\n", difftime(stop, start)); // time()  version
  printf("\nElapsed time = %g Seconds\n", (stop-start)/((double) CLOCKS_PER_SEC)); // clock()  version
  return 0;
}