std::pair<double, double> PCR::theta_moments()const{
double mean(0), var(0), n(0);
for_each(subjects().begin(), subjects().end(),
boost::bind(&PCR::increment_theta_moments, this, _1,
boost::ref(mean), boost::ref(var), boost::ref(n)));
if(n>0) mean/=n;
var -= n*mean*mean;
if(n>1) var/= n-1;
return std::make_pair(mean, var);
}
int main()
{
clrscr();
printf("Welcome to CarrotCore!\n");
printf("Pikachu School District, Dummer County, Wyoming\n\n");
printf("Registered users for Leroy Jenkins Elementary:\n");
char *teachk = "*****@*****.**";
char *teach1 = "*****@*****.**";
char *teach2 = "*****@*****.**";
char *teach3 = "*****@*****.**";
char *teach4 = "*****@*****.**";
char *teach5 = "*****@*****.**";
printf("Sienna Spencer (Kindergarten) <%s>\n", teachk);
printf("Joel Chapman (First Grade) <%s>\n", teach1);
printf("Niamh Parker (Second Grade) <%s>\n", teach2);
printf("Hannah Lyons (Third Grade) <%s>\n", teach3);
printf("Christopher Law (Fourth Grade) <%s>\n", teach4);
printf("Mitchell Davis (Fifth Grade) <%s>\n\n", teach5);
char *user=(char*) malloc(35);
char *pass=(char*) malloc(sizeof(char)*100);
int i1;
do {
printf("Username: "******"%u\n",sizeof(user));
fgets(user, sizeof(user), stdin);
printf("%s\n", user);
user[strlen(user)-1]='\0';
for (i1=0; i1<35; i1++)
{
user[i1]=tolower(user[i1]);
}//function "tolower" used to make all input lowercase
printf("%s\n", user);
printf("Password: "******"Invalid username. Please login with a certified Pikachu School District email.\n");
}
} while(strcmp(user, teachk)!=0 && strcmp(user, teach1)!=0 && strcmp(user, teach2)!=0 && strcmp(user, teach3)!=0 && strcmp(user, teach4)!=0 && strcmp(user, teach5)!=0);
FILE *class;
teacher teach;
switch (user[0])//first letter of username input decides teacher profile and class roster
{
case 's':
class=fopen("kindergarten2.txt", "r");
teach.fname="Sienna";
teach.lname="Spencer";
teach.birthday="5/31/1985";
teach.grade="Kindergarten";
teach.email=teachk;
teach.title="Mrs.";
break;
case 'j':
class=fopen("firstgrade2.txt", "r");
teach.fname="Joel";
teach.lname="Chapman";
teach.birthday="1/28/1975";
teach.grade="First Grade";
teach.email=teach1;
teach.title="Mr.";
break;
case 'n':
class=fopen("secondgrade2.txt", "r");
teach.fname="Niamh";
teach.lname="Parker";
teach.birthday="10/10/1961";
teach.grade="Second Grade";
teach.email=teach2;
teach.title="Mrs.";
break;
case 'h':
class=fopen("thirdgrade2.txt", "r");
teach.fname="Hannah";
teach.lname="Lyons";
teach.birthday="12/14/1955";
teach.grade="Third Grade";
teach.email=teach3;
teach.title="Mrs.";
break;
case 'c':
class=fopen("fourthgrade2.txt", "r");
teach.fname="Christopher";
teach.lname="Law";
teach.birthday="3/2/1969";
teach.grade="Fourth Grade";
teach.email=teach4;
teach.title="Mr.";
break;
case 'm':
class=fopen("fifthgrade2.txt", "r");
teach.fname="Mitchell";
teach.lname="Davis";
teach.birthday="12/22/1977";
teach.grade="Fifth Grade";
teach.email=teach5;
teach.title="Mr.";
break;
}
int num;
fscanf(class,"%d", &num);//first line of each file is number of students
student stud[num];
int i;
fgetc(class);
char *wholeName=(char*)malloc(sizeof(char)*100);
char *address=(char*)malloc(sizeof(char)*100);
char *birthday=(char*)malloc(sizeof(char)*12);
int lnamelength=0, fnamelength=0, bdaylength=0, addlength=0;
for (i=0; i<num; i++)//initializes data to structure array
{
fgets(wholeName, 100, class);
wholeName[strlen(wholeName)-1]='\0';
stud[i].fname=wholeName;
stud[i].lname=splitString(wholeName, ' ');
fnamelength+=strlen(stud[i].fname);
*stud[i].lname='\0';
stud[i].lname++;
lnamelength+=strlen(stud[i].lname);
fgets(address, 100, class);
address[strlen(address)-1]='\0';
stud[i].address=address;
addlength+=strlen(stud[i].address);
fgets(birthday, 12, class);
birthday[strlen(birthday)-1]='\0';
stud[i].birthday=birthday;
bdaylength+=strlen(stud[i].birthday);
}
clrscr();
printf("Welcome, %s %s!\n", teach.title, teach.lname);
int choice;
do{//main menu
printf("Please select an option below. (Enter the numeric value.)\n");
help();
if (scanf("%d", &choice)==0){
clrscr();
printf("Invalid input. Please input a number.\n");
while(getchar()!='\n');
}
}while(choice!=1&&choice!=2&&choice!=3&&choice!=4&&choice!=5);
//the following pointers to pointers are needed for roster
char **lname=(char**)malloc(lnamelength);
char **fname=(char**)malloc(fnamelength);
char **bdays=(char**)malloc(bdaylength);
char **addresses=(char**)malloc(addlength);
int i5;
for (i5=0;i5<num;i5++)
{
lname[i5]=stud[i5].lname;
fname[i5]=stud[i5].fname;
bdays[i5]=stud[i5].birthday;
addresses[i5]=stud[i5].address;
}
int subcho;
int asscho;
float weight;
int i7, i8;
int denom, correct;
int *assignments=(int*)malloc(400);
switch (choice)
{
case 1:
roster (lname, fname, bdays, addresses, num);
break;
case 2:
do{//choose subject, choose assignment type, input grades for each student based on correct/total questions
printf("What subject are you inputting grades for?\n");
subjects();
if (scanf("%d", &subcho)==0){
clrscr();
printf("Invalid input. Please input a number.\n");
while(getchar()!='\n');
}
}while(subcho!=1&&subcho!=2&&subcho!=3&&subcho!=4&&subcho!=5);
do{
printf("What type of assignment is this grade for?\n");
assigntype();
if(scanf("%d", &asscho)==0){
clrscr();
printf("Invalid input. Please input a number.\n");
while(getchar()!='\n');
}
}while(asscho!=1&&asscho!=2&&asscho!=3&&asscho!=4);
do{
printf("How many questions did the assignment have?\n");
if (scanf("%d", &denom)==0){
clrscr();
printf("Invalid input.Please input a number.\n");
while(getchar()!='\n');
}
}while(denom!=0);
switch (asscho)
{
case 1: weight=0.4;
break;
case 2: weight=0.3;
break;
case 3: weight=0.2;
break;
case 4: weight=0.1;
break;
}
*assignments=asscho;
assignments++;
switch (subcho)
{
case 1:
for (i7=0;i7<num;i7++)
{
printf("How many did %s get right?", stud[i7].fname);
scanf("%d", &correct);
*stud[i7].grad.gradesMath=100*weight*(correct/denom);
stud[i7].grad.gradesMath++;
}
break;
case 2:
for (i7=0;i7<num;i7++)
{
printf("How many did %s get right?", stud[i7].fname);
scanf("%d", &correct);
*stud[i7].grad.gradesEng=100*weight*(correct/denom);
stud[i7].grad.gradesEng++;
}
break;
case 3:
for (i7=0;i7<num;i7++)
{
printf("How many did %s get right?", stud[i7].fname);
scanf("%d", &correct);
*stud[i7].grad.gradesSci=100*weight*(correct/denom);
stud[i7].grad.gradesSci++;
}
break;
case 4:
for (i7=0;i7<num;i7++)
{
printf("How many did %s get right?", stud[i7].fname);
scanf("%d", &correct);
*stud[i7].grad.gradesHist=100*weight*(correct/denom);
stud[i7].grad.gradesEng++;
}
break;
case 5:
for (i7=0;i7<num;i7++)
{
printf("How many did %s get right?", stud[i7].fname);
scanf("%d", &correct);
*stud[i7].grad.gradesSpan=100*weight*(correct/denom);
stud[i7].grad.gradesSpan++;
}
break;
}
}
free(lname);
free(user);
free(pass);
free(fname);
free(bdays);
free(addresses);
free(wholeName);
free(address);
free(birthday);
fclose(class);
return 0;
}
