ใครเก่งภาษา C ช่วยผมหน่อยครับ จนปัญญา

ช่วยแยกเป็นfunctionให้หน่อยครับ
หรือแนะมาเป็นแนวทางก็ได้
แยกเป็นฟังก์ชัน ตรงที่

commentเป็นตัวอ่ะเลขครับ (//1, //2, //3, //4, //5, //6)

จนปัญญาจริงๆครับ นั่งทำทั้งคืนแล้ว พอแก้แล้วมันก็มีerrorเต็มหมด
ไม่รู้จะให้ส่งค่าไป ส่งค่ากลับยังงัย

อ้างถึง

#include<stdio.h>
#include<time.h>
#include<stdlib.h>
#include<string.h>

FILE *fp;

int main(void){

   int randomNumber;
   int inputNumber;
   int temp;
   bool isSame = false;
   bool isInputSame = false;
   bool isTopScore = false;
   int randomArray[4];
   int inputArray[4];
   int loop;
   int i,j;
   int turn = 0;
   int rightPosition = 0;
   int rightOnlyNumber = 0;
   int score1 = 0;
   int score2 = 0;
   int totalScore = 0;
   int turnScore = 0;
   int score3 = 0;
   int hightScore[10];
   char name[10][20];
   char player[20];
   char ch;
   loop = 0;
   // 1.
   fp = fopen("hight.txt","r");
   if(fp != NULL){
      while(!feof(fp) && (loop<10)){
         fscanf(fp,"%s%d%c",name[loop],&hightScore[loop],&ch);
         printf("%d :: %s \t %d \n",loop+1,name[loop],hightScore[loop]);
         loop++;
      }
   }
   else{
      printf("ERROR\n");
      exit(0);
   }
   fclose(fp);

   // 2.
   srand(time(NULL));
   do{
      isSame = false;
      randomNumber = (rand() % 8853) + 1023;
      temp = randomNumber;
      for(loop = 0; loop < 4; loop++){
         randomArray[loop] = temp % 10;
         temp = temp / 10;
      }
      for(i = 0; i < 4; i++){
         for(j = 0; j < 4; j++){
            if(i != j){
               if(randomArray == randomArray[j]){
                  isSame = true;
                  break;
               }
            }
         }
         if(isSame){
            break;
         }
      }
   }while(isSame);
//   printf("%d \n",randomNumber);

   printf("Pls. input your name :: ");
   scanf("%s",player);
   turn = 0;
// input number and compare
   // 3.
   totalScore = 0;
   do{
      rightPosition = 0;
      rightOnlyNumber = 0;
      do{
         isInputSame = false;
         printf("Turn %d your quess :: ",turn+1);
         scanf("%d",&inputNumber);
         temp = inputNumber;
         for(loop = 0; loop < 4; loop++){
            inputArray[loop] = temp % 10;
            temp = temp / 10;
         }
         for(i = 0; i < 4; i++){
            for(j = 0; j < 4; j++){
               if(i != j){
                  if(inputArray == inputArray[j]){
                     isInputSame = true;
                     printf("Invalid Input Pls. input again \n");
                     break;
                  }
               }
            }
            if(isInputSame){
               break;
            }
         }
      }while(isInputSame);
      // compare
      for(i = 0; i < 4; i++){
         if(randomArray == inputArray){
            rightPosition++;
         }
         for(j = 0; j < 4; j++){
            if(i != j){
               if(randomArray == inputArray[j]){
                  rightOnlyNumber++;
               }
            }
         }
      }
      printf(" %d \t %d\n",rightPosition,rightOnlyNumber);
      turn++;
      score1 = rightOnlyNumber * 12;
      score2 = rightPosition * 25;
      turnScore = score1 + score2;
      totalScore = totalScore + turnScore;
      printf("Score1 :: %d \t Score2 :: %d \t totalScore :: %d \n",score1,score2,totalScore);
   }while( (rightPosition < 4) && (turn < 10) );

   // 4.
   score3 = 0;
   score3 = (10 - (turn+1)) * 100;
   totalScore = totalScore + score3;
   printf("Your score :: %d \n", totalScore);
   printf("Random number :: %d \n",randomNumber);

   // 5.
   isTopScore = false;
   for(loop = 0; loop < 10; loop++){
      if(totalScore > hightScore[loop]){
         for(i = 9; i < loop; i--){
            hightScore = hightScore[i-1];
         }
         hightScore[loop] = totalScore;
         strcpy(name[loop],player);
         isTopScore = true;
      }
      if(isTopScore){
         break;
      }
   }
   // 6.
   // write to file
      loop = 0;
      fp = fopen("hight.txt","w");
      if(fp != NULL){
         while(loop < 10){
            fprintf(fp,"%s %d \n",name[loop],hightScore[loop]);
            loop++;
         }
      }
      else{
         printf("ERROR \n");
         exit(0);
      }

      printf("END Program \n");
} // end main function