tugas CPP minggu ini Q 2

#include "iostream.h"

void main(){
int mark1,mark2,mark3,pass;
double TotalMark,Avg;
char avgMark;
pass=0;

cout<<"Input Mark1 : "; cin>>mark1;
cout<<"Input Mark2 : "; cin>>mark2;
cout<<"Input Mark3 : "; cin>>mark3;

TotalMark=mark1+mark2+mark3;
Avg=TotalMark/3;

if(mark1>40)
pass++;
if(mark2>40)
pass++;
if(mark3>40)
pass++;

switch(pass){
case 0:
case 1:
cout<<"Failed"<<50) else="" cout=""><<"You Pass this exams"<<<"You Pass this exams"<<<"Your Total Mark is :"<<<<"Your Percentage Mark is "<<<" %"<85)
avgMark='A';
else if((Avg<=85)&&(Avg>75))
avgMark='B';
else if((Avg<=75)&&(Avg>65))
avgMark='C';
else if((Avg<65)&&(avg>55))
avgMark='D';
else if((Avg<=55)&&(Avg>45))
avgMark='E';
else
avgMark='F';
cout<<"Your Average Mark is : "<<
}