How do i end this c programming loop?....am i even using the right loop?

I compile and run...I enter test scores and the program keeps asking me to enter....it won;t stop...help.





it is the first while loop. i need it to end when the user hits Enter with no test score.


Purpose: Write a program that will find the lowest, highest, and average score for a set of test scores.


**************************************...


#include %26lt;math.h%26gt;


#include %26lt;stdio.h%26gt;


#include %26lt;stdlib.h%26gt;


#include %26lt;string.h%26gt;


main()


{


float score;


float average;


float x;


float max = 0;


float min = 1000; /*just in case there is extra credit*/


float total = 0;


float sum;


int i = 0;


char ac[BUFSIZ+1];





{





printf ("***********************************\n"...


printf ("*****Test Score Statisics *****\n");


printf ("***********************************\n"...





{





while ( score %26gt;= 0 ) {


printf("Please Enter test Score %d: ", i+1);


score = atoi(gets(ac));








if( score %26gt; max ) { /* Find Max Score*/


max = score;


}else{


if (score %26lt; min) { /* Find Min Score*/


min = score;


}


}


sum = score + sum; /* Find Sum Score*/


}





average = sum / i; /* Find Average Score*/





printf( "\n\nThe average score is %.1f\n", average);


printf( "%d Test Scores\n", i );


printf( "Maximun Test Score = %.1f\n", max);


printf( "Minimum Test Score = %.1f\n", min);





}


system("PAUSE");


return;


}}

How do i end this c programming loop?....am i even using the right loop?
// Replace this:


gets(ac);


if (ac[0] == 0) break;


score = atoi(ac);





// I'm Java/C#'er I have not touched C in years, fix it if wrong
Reply:you need to end the while loop after you finish printing your scores
Reply:the reson it dont exit is cuz your making sure score is always greter than zero. with the two if statments. you need to check after 'score = atoi(gets(ac));' if score is less than zero and break. and the while loop while ( score %26gt;= 0 ) should be while(true)
Reply:enter negative number


such as -1





But there are logical errors in the program.