what is the problem actually in my code?when debug ,it will crash or come out same data.

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

int main(void)
{
	int col;
	int rand_question[3];
	int confirm_question[3];
	int i;
	int score=0;
	char choice;
	int max_question, total_question;

	max_question = 3;
	total_question = 3;

	srand(time(NULL));

	
	/for(col=0 ; col < max_question ; col++)
	{
		if(col==0)
		{
			confirm_question[col] = rand() % total_question ;
		}
		else
		{
			do
			{
				rand_question[col] = rand() % total_question;
			
				for(i=1 ; i < col ; i++)  
				{
					if(rand_question[col] == confirm_question[i]||rand_question[col]==0)
					{
						break;
					}
				}
			}while(rand_question[col] == confirm_question[i]);
			
			confirm_question[col] = rand_question[col];
		}

	}
	
	system("cls");
	  
	for(i=0; i<3; i++)
	{
		printf("%d\n",confirm_question[i]);
	}

		for(i=0; i<3; i++)
		{
			switch(confirm_question[i])
			{
				case 1:
					score=quizquestion1();
					break;
				case 2:
					score=quizquestion2();
					break;
				case 3:
					score=quizquestion3();
					break;
				default:
					printf("Nothing\n\n");
					break;
			}
				
		}

	
		printf("\t******************************************************************************\n");
		printf("\t*       Thanks for your answering  Your final score are %d/10  \n\n          *",score);
		printf("\t******************************************************************************\n");
		
	return 0;
}

1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\quiz.c(33): error C2449: found '{' at file scope (missing function header?)
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\quiz.c(512): error C2059: syntax error : '}'
1> game.c
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\game.c(29): warning C4244: 'function' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\game.c(64): error C2059: syntax error : 'return'

what is the problem actually in my code?when debug ,it will crash or come out same data.


1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\quiz.c(33): error C2449: found '{' at file scope (missing function header?)
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\quiz.c(512): error C2059: syntax error : '}'
1> game.c
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\game.c(29): warning C4244: 'function' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\lenovo\documents\visual studio 2010\projects\chemquiz\chemquiz\game.c(64): error C2059: syntax error : 'return'

It all depends on what is on or before lines 33 and 512 in quiz.c and lines 29 and 64 of game.c