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error£ºundefine symbol 'DELECT'
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
int main(void)
{
int gdriver = DETECT, gmode, errorcode;
int left, top, right, bottom;
initgraph(&gdriver, &gmode, "");
errorcode = graphresult();
if (errorcode != grOk) {
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1); }
left = getmaxx() / 2 - 50;
top = getmaxy() / 2 - 50;
right = getmaxx() / 2 + 50;
bottom = getmaxy() / 2 + 50;
rectangle(left,top,right,bottom);
getch();
closegraph();
return 0;
}
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¸ÄDELECTΪDETECT,
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gcc -c log.c
ar crv liblog.a log.o
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#include "stdlib.h"
#include "math.h"
#include "stdio.h"
float objfx(float x[]);
void constraint(float x[] ......