I am trying to create a C program to calculate bowling scores (this is not the same as the other bowling problems posted here). I am having trouble figuring out where to go when a strike is encountered without using 1000 if statements. I would greatly appreciate any help i can get with either logic or code.

Here is a stripped down version of my code (no fancy display), it contains only the scoring functions. I have heard that a struct or a flag might help me, but i am not very familiar with them yet so i am heading to look them up now. Again, any help would be greatly appreciated. Thanks.

Code:
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "math.h"

int main(void)
{
  FILE *fp;
  char c; 
  int i = 0;
  int j = 0;
  int players = 0;
  int frame[10][2];
  int total_score = 0;
  char strike_answer;
  char spare_answer;
    
   for(i = 0; i<10; i++)
   {
       for( j = 0; j<2; j++)
       {
           if( j == 0)
           {
               printf("Did You get a strike? y/n?");
               strike_answer = getc(stdin);
               fflush(stdin);
               
               if(strike_answer == 'y')
               {
                   printf("STRIKE!!!\n");
                   j = j+2;
                   // strike function                                                            
               }
               else
               {                  
                   printf("Enter Score for Frame %i Ball %i\n", i+1,j+1);
                   scanf("%i", &frame[i][j]); 
                   fflush(stdin);     
                   total_score = total_score + frame[i][j];    
                   printf("Total Score is %i\n", total_score);  
               }  
           }
           if(j == 1)
           {
               printf("Did You get a spare? y/n?");
               spare_answer = getc(stdin);
               fflush(stdin);
               
               if(spare_answer == 'y')
               {
                  printf("spare\n");
                  // spare function
               }
               else
               {
                   printf("Enter Score for Frame %i Ball %i\n", i+1,j+1);
                   scanf("%i", &frame[i][j]); 
                   fflush(stdin);     
                   total_score = total_score + frame[i][j];    
                   printf("Total Score is %i\n", total_score);    
               }                       
           }
       }    
   }        
    system("pause");
    return(0);