程式碼：

#include <stdio.h>

char varChar1 = 0x11;
int varInt1 = 0x12345678;
short varShort1 = 0x2323;
long long var64Int1 = 0xF1AAAAAAAAAAAAF2;

long long main(int argc, char **argv)
{
    long long var64Int2;
    var64Int2 = var64Int1 + varShort1 + varChar1;

    for(int i = 0; i < argc; i++){
        printf(
 
"%s\n", *(argv + i));                                                           
    }  

    return var64Int2;
}

#include <stdlib.h>

int var1;
int var2 = 100;
int var3;
int var4 = 200;

int func(int inVar1, int inVar2){
    var3 = inVar1 + var4;                                                                      
    
 
int tmp = var3 * inVar2;
    
    return tmp;
}   

int main(int argc, char **argv)
{
    int *buffer;
    int var1 = func(var2, 5);
    buffer = (int *)malloc(1024);

    return var1;
}

#include <stdio.h>

int arr[8] = {0, 1, 2, 3, 4, 5, 6, 7};

typedef struct _myStruct{
    char ch1;
    double
 
 dou1;
    int i1;
} MyStruct; 

typedef union _myUnion{
    char ch1;
    double dou1;
    int i1;
} MyUnion;
    
int main(int argc, char **argv)
{   
    MyStruct myStruct;
    myStruct.ch1 = 'a';
    myStruct.dou1 = 1.0;
    myStruct.i1 = 2;

    MyUnion myUnion;
    myUnion.ch1 = 'a';
    myUnion.dou1 = 1.0;
    myUnion.i1 = 2;

    printf("arr size: %d\n", sizeof(arr));
    printf("struct size: %d\n", sizeof(MyStruct));
    printf("union size: %d\n",  sizeof(MyUnion));

    return 0;
}  
 
#include <stdio.h>

int funSum(int num){
    int sum = 0; 
    for(int i = 0; i < num; i++){
        sum += i;
    }
    
    return sum;
} 

int main(int argc, char **argv)
{   
    long result = 0;
    for(int i = 0; i <= 100; i++){
        result += i;
    }
    
    char arr[10] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'};
    
    printf("result[1-100] = %d\n", result);
    printf("result[1-200] = %d\n", funSum(200));
    
    return 0;                                                                                  
}