So I need to sum the votes received per candidate but the sum becomes negative. I tried using the debugger in Dev-C but the program stops after I enter the votes so I used VS Code instead to debug the program. But when I run it, the output was correct even though I didn't change any code when I opened it in VS Code. I'm using Dev-C 5.11 and VS Code 1.65.0. I can't switch to VS Code because my teacher requires us to use either Dev-C or Turbo C . I can't use Turbo C as well since it freezes every time I run any program using it.
THE CODE:
/****************************************************************************
MACHINE PROBLEM 1
The results from the mayor's race have been reported by each precinct as
follows:
Candidate Candidate Candidate Candidate
Precincts A B C D
1 192 48 206 37
2 147 90 312 21
3 186 12 121 38
4 114 21 408 39
5 267 13 382 29
Write a program to do the following:
a. Print out the table with the appropriate headings for the rows and
columns.
b. Compute and print the total number of votes received by each
candidate and the percent of the total votes cast.
c. If any one candidate received over 50 percent of the total votes, the
program should print a message declaring that candidate the winner.
d. If no candidate received 50 percent of the votes, the program should
print a message declaring a run-off between the two candidates who
received the highest number of votes; two candidates should be identified
by their letter names.
e. Run the program once with the preceding data and once with candidate C
receiving only 108 votes in precinct 4. (note: test values are not
limited to the preceding data)
Note: Use Array for this machine problem
*****************************************************************************/
#include <stdio.h>
#include <windows.h>
void headings();
void cHeadings();
char candidates[4] = {'A', 'B', 'C', 'D'};
int precincts[5] = {1, 2, 3, 4, 5};
int votes[5][4];
COORD coord = {0,0};
void gotoxy(int x, int y);
int main()
{
char border = '|';
int i, j;
// Print headings
printf("---------------------------------------------------------------------------------------\n");
printf("\t\t%c\t", border);
headings();
printf("\nPrecincts");
printf("\t%c\t", border);
cHeadings();
printf("---------------------------------------------------------------------------------------\n");
//// Print precinct number
for (i = 0; i < 5; i ) {
printf("%d", precincts[i]);
printf("\t\t%c\t", border);
if (i != 4)
printf("\n");
}
printf("\n---------------------------------------------------------------------------------------\n");
// Table data
int xcoord = 24, ycoord = 4;
for (i = 0; i < 5; i , ycoord ) {
xcoord = 24;
for (j = 0; j < 4; j , xcoord = 16) {
gotoxy(xcoord, ycoord);
scanf("%d", &votes[i][j]);
}
printf("\n");
}
// Total number of votes per candidate
float sum[1][4];
printf("\n");
printf("----------------------------------------------------------------------------------------------\n");
printf("\t\t\t%c\t", border);
headings();
printf("\t\t\t\t\t%c\t", border);
cHeadings();
printf("----------------------------------------------------------------------------------------------\n");
printf("Total no. of votes\t");
printf("%c\t", border);
for (i = 0; i < 5; i ) {
//j = 0;
for (j = 0; j < 4; j ) {
sum[0][j] = votes[i][j];
}
}
for (i = 0; i < 4; i ) {
printf("%d\t\t", (int) sum[0][i]);
}
printf("\n----------------------------------------------------------------------------------------------");
return 0;
}
// Print "Candidate" headings
void headings()
{
int i;
for (i = 0; i < 4; i ) {
/*if (i == 0) {
printf("\t");
} else {*/
printf("Candidate\t");
//}
if (i == 4) {
printf("\n");
}
}
}
// Print candidate letter names
void cHeadings()
{
int i;
for (i = 0; i < 5; i ) {
printf("%c\t\t", candidates[i]);
if (i == 4) {
printf("\n");
}
}
}
// gotoxy()
void gotoxy(int x, int y)
{
coord.X = x;
coord.Y = y;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}
OUTPUT (DEV-C ):
---------------------------------------------------------------------------------------
| Candidate Candidate Candidate Candidate
Precincts | A B C D
---------------------------------------------------------------------------------------
1 | 192 48 206 37
2 | 147 90 312 21
3 | 186 12 121 38
4 | 114 21 408 39
5 | 267 13 382 29
---------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------
| Candidate Candidate Candidate Candidate
| A B C D
----------------------------------------------------------------------------------------------
Total no. of votes | -2147483648 -2147483648 1429 164
----------------------------------------------------------------------------------------------
--------------------------------
Process exited after 43.82 seconds with return value 0
Press any key to continue . . .
OUTPUT (VS CODE):
---------------------------------------------------------------------------------------
| Candidate Candidate Candidate Candidate
Precincts | A B C D
---------------------------------------------------------------------------------------
1 | 192 48 206 37
2 | 147 90 312 21
3 | 186 12 121 38
4 | 114 21 408 39
5 | 267 13 382 29
---------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------
| Candidate Candidate Candidate Candidate
| A B C D
----------------------------------------------------------------------------------------------
Total no. of votes | 906 184 1429 164
----------------------------------------------------------------------------------------------
CodePudding user response：
Seems that you forgot to clean local variables before to use. Just use float sum [4] = { 0 };
It is necessary due to memory which is allocated locally would be filled by any values. C standard aware just for cleaning of global variables.