#include<stdio.h> #include<math.h> int main() { int firstx; int firsty; int seco
ID: 3608902 • Letter: #
Question
#include<stdio.h>
#include<math.h>
int main()
{
int firstx;
int firsty;
int secondx;
int secondy;
int thirdx;
int thirdy;
double distanceFS, distanceFT, TotalFirst;
double distanceSF, distanceST, TotalSecond;
double distanceTF, distanceTS, TotalThird;
int house1, house2, house3;
printf("What are the x and y coordinates of thefirst person's house? ");
scanf("%d%d", &firstx, &firsty);
printf("What are the x and y coordinates of thesecond person's house? ");
scanf("%d%d", &secondx, &secondy);
printf("What are the x and y coordinates of thethird person's house? ");
scanf("%d%d", &thirdx, &thirdy);
distanceFS == sqrt(pow((firstx-secondx),2) +pow((firsty-secondy),2));
distanceFT == sqrt(pow((firstx-thirdx),2) +pow((firsty-thirdy),2));
TotalFirst = distanceFS + distanceFT;
distanceSF == sqrt(pow((secondx-firstx),2) +pow((secondy-firsty),2));
distanceST == sqrt(pow((secondx-thirdx),2) +pow((secondy-thirdy),2));
TotalSecond = distanceSF + distanceST;
distanceTF == sqrt(pow((thirdx-firstx),2) +pow((thirdy-firsty),2));
distanceTS == sqrt(pow((thirdx-secondx),2) +pow((thirdy-secondy),2));
TotalThird = distanceTF + distanceTS;
house1 = 1;
house2 = 2;
house3 = 3;
if (TotalFirst < TotalSecond &&TotalFirst < TotalThird)
{
printf("You should studyat person %d's house. ", house1 );
}
else if (TotalSecond < TotalFirst &&TotalSecond < TotalThird)
{
printf("You should studyat person %d's house. ", house2 );
}
else if (TotalThird < TotalFirst &&TotalThird < TotalSecond)
{
printf("You should studyat person %d's house. ", house3 );
}
system("PAUSE");
return 0;
}
Explanation / Answer
#include<stdio.h>
#include<math.h>
#include <conio.h>
int main()
{
int firstx;
int firsty;
int secondx;
int secondy;
int thirdx;
int thirdy;
double distanceFS, distanceFT, TotalFirst;
double distanceSF, distanceST, TotalSecond;
double distanceTF, distanceTS, TotalThird;
int house1, house2, house3;
printf("What are the x and y coordinates of thefirst person's house? ");
scanf("%d%d", &firstx, &firsty);
printf("What are the x and y coordinates of thesecond person's house? ");
scanf("%d%d", &secondx, &secondy);
printf("What are the x and y coordinates of thethird person's house? ");
scanf("%d%d", &thirdx, &thirdy);
distanceFS == sqrt(pow((firstx-secondx),2) +pow((firsty-secondy),2));
distanceFT == sqrt(pow((firstx-thirdx),2) +pow((firsty-thirdy),2));
TotalFirst = distanceFS + distanceFT;
distanceSF == sqrt(pow((secondx-firstx),2) +pow((secondy-firsty),2));
distanceST == sqrt(pow((secondx-thirdx),2) +pow((secondy-thirdy),2));
TotalSecond = distanceSF + distanceST;
distanceTF == sqrt(pow((thirdx-firstx),2) +pow((thirdy-firsty),2));
distanceTS == sqrt(pow((thirdx-secondx),2) +pow((thirdy-secondy),2));
TotalThird = distanceTF + distanceTS;
house1 = 1;
house2 = 2;
house3 = 3;
if (TotalFirst < TotalSecond &&TotalFirst < TotalThird)
{
printf("You should studyat person %d's house. ", house1 );
}
else if (TotalSecond < TotalFirst &&TotalSecond < TotalThird)
{
printf("You should studyat person %d's house. ", house2 );
}
else if (TotalThird < TotalFirst &&TotalThird < TotalSecond)
{
printf("You should studyat person %d's house. ", house3 );
}
getch();
return 0;
}
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