金字招牌

1
#include <stdio.h>
2

3
int main()
4
{
5
    int a = 100, b = 10;
6
    int *p1, *p2;
7
    p1 = &a;
8
    p2 = &b;
9
    printf("%p, %d\n", &a, b);
10
    printf("%p, %d", &p1, *p2);
11
}

1
#include <stdio.h>
2

3
int main()
4
{
5
    int *p1, *p2, *p, a, b;
6
    scanf("%d,%d", &a, &b);
7
    p1 = &a;
8
    p2 = &b;
9
    if (a < b)
10
    {
11
        p = p1;
12
        p1 = p2;
13
        p2 = p;
14
    }
15
    printf("a=%d,b=%d\n", a, b);
16
    printf("max=%d,min=%d\n", *p1, *p2);
17
}

1
#include <stdio.h>
2

3
int main()
4
{
5
    int a, b, c, t;
6
    int i, *p = &i;
7
    int *p1 = &a, *p2 = &b, *p3 = &c;
8
    scanf("%d,%d,%d", &a, &b, &c);
9
    if (*p1 > *p2)
10
    {
11
        t = *p1;
12
        *p1 = *p2;
13
        *p2 = t;
14
    }
15
    if (*p1 > *p3)
16
    {
17
        t = *p1;
18
        *p1 = *p3;
19
        *p3 = t;
20
    }
21
    if (*p2 > *p3)
22
    {
23
        t = *p2;
24
        *p2 = *p3;
25
        *p3 = t;
26
    }
27
    printf("%d,%d,%d\n", *p1, *p2, *p3);
28
}

1
#include <stdio.h>
2

3
swap(int x, int y)
4
{
5
    int t;
6
    t = x;
7
    x = y;
8
    y = t;
9
}
10

11
int main()
12
{
13
    int a, b;
14
    int *pa, *pb;
15
    scanf("%d,%d", &a, &b);
16
    pa = &a;
17
    pb = &b;
18
    if (a < b)
19
        swap(*pa, *pb);
20
    printf("\n%d,%d\n", a, b);
21
}

1
#include <stdio.h>
2

3
swap(int *p1, int *p2)
4
{
5
    int *p;
6
    p = p1;
7
    p1 = p2;
8
    p2 = p;
9
}
10

11
int main()
12
{
13
    int a, b;
14
    int *pa, *pb;
15
    scanf("%d,%d", &a, &b);
16
    pa = &a;
17
    pb = &b;
18
    if (a < b)
19
        swap(pa, pb);
20
    printf("%d,%d", *pa, *pb);
21
}

1
#include <stdio.h>
2

3
swap(int *p1, int *p2)
4
{
5
    int t;
6
    t = *p1;
7
    *p1 = *p2;
8
    *p2 = t;
9
}
10

11
int main()
12
{
13
    int a, b;
14
    int *pa, *pb;
15
    scanf("%d,%d", &a, &b);
16
    pa = &a;
17
    pb = &b;
18
    if (a < b)
19
        swap(pa, pb);
20
    printf("\n%d,%d\n", a, b);
21
}

1
#include<stdio.h>
2
#define M 3
3
#define N 4
4

5
void InputArray(int (*a)[N], int m, int n)
6
{
7
    int i, j;
8
    for(i = 0; i < m; i++)
9
    {
10
        for(j = 0; j < n; j++)
11
        {
12
            scanf("%d", &(*(*(a+i)+j)));
13
        }
14
    }
15
}
16

17
void PrintArray(int (*a)[N], int m, int n)
18
{
19
    int i, j;
20
    for(i = 0; i < m; i++)
21
    {
22
        for(j = 0; j < n; j++)
23
        {
24
            printf("%d ", *(*(a+i)+j));
25
        }
26
        printf("\n");
27
    }
28
}
29

30
int main()
31
{
32
    int a[M][N] = {1,2,3,4,5,6,7,8,9,10,11,12};
33
    InputArray(a, M, N);
34
    PrintArray(a, M, N);
35
    return 0;
36
}

1
#include<stdio.h>
2
#include <stdlib.h>
3

4
int main()
5
{
6
    int n, sum, i, *p;
7
    printf("Enter n: ");
8
    scanf("%d", &n);
9
    if ((p = (int*)malloc(n * sizeof(int))) == NULL) {
10
        printf("Not able to allocate memory.\n");
11
        exit(1);
12
    }
13
    printf("Enter %d integers: ", n);
14
    for (i = 0; i < n; i++){
15
        scanf("%d", p+i);
16
    }
17
    sum = 0;
18
    for (i = 0; i < n; i++){
19
        sum = sum + *(p+i);
20
    }
21
    printf("The sum is %d\n", sum);
22
    free(p);
23
    return 0;
24
}