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#include <stdio.h>
static int internalVar = 20;
void printInternalVar(){
printf("internalVar: %d\n", internalVar);
}
void modifyInternalVar(int value){
internalVar = value;
}
int main(){
printf("main_intermalVar: %d\n", internalVar);
internalVar = 300;
printf("main_intermalVar: %d\n", internalVar);
return 0;
}
#include <stdio.h>
// μΈλΆ νμΌμμ λ΄λΆ μ°κ²° λ³μλ₯Ό μ§μ μ°Έμ‘°ν μ μμ
// extern int internalVar; //μ΄λ κ² νλ©΄ λ§ν¬ μ€λ₯ λ°μ
extern void printInternalVar();
extern void modifyInternalVar(int value);
/*int main(){
printInternalVar();
modifyInternalVar(50);
printInternalVar();
return 0;
}*/
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