#include <stdio.h>

inr main()
{
int passes = 0;
int failures = 0;
int student = 1;
int result;

while ( student <= 10 ) {

printf( "Enter result ( 1=pass,2=fail ): " );
scanf( "%d", &result );

if ( r ..

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看不太懂題目耶!!可以在描述清楚一點點嗎??
p.s
inr main()←這是啥??應該是int main吧??

passes = passest+1;
}
else {
failures = failurest+ 1;
}

student = student+1;

你都少打了+號吧= =....

do
{
  printf( "Enter result ( 1=pass,2=fail ): " );
  scanf( "%d", &result );
} while(XXX);
XXX部份自己想...