1 #include<stdio.h>
2 #include<stdlib.h>
3 int main()
4 {
5 int a = 1;
6 int b = 2;
7 a = a + b;
8 b = a - b;
9 a = a - b;
10 printf("a=%d\n", a);
11 printf("b=%d\n", b);
12 system("pause");
13 return 0;
14 }
15
16
17
18 2.(1)
19 #include<stdio.h>
20 #include<stdlib.h>
21 int main()
22 {
23 int a = 1;
24 int b = 2;
25 int c = 0;
26 c = a;
27 a = b;
28 b = c;
29 printf("a=%d\n", a);
30 printf("b=%d\n", b);
31 system("pause");
32 return 0;
33
34 2(2).
35 #include<stdio.h>
36 #include<stdlib.h>
37 int main()
38 {
39 int a=1;
40 int b=2;
41 a=a^b;
42 b=b^a;
43 a=a^b;
44 printf("a=%d\n",a);
45 printf("b=%d",b);
46 system("pause");
47 return 0; }
48
49 3.
50 #include<stdio.h>
51 #include<stdlib.h>
52 #include<math.h>
53
54 int main()
55
56 {
57
58 int i =0,a[10];
59
60 for(i = 0; i < 10; i++)
61
62 scanf("%d",&a[i]);
63
64 int max = a[0];
65
66 for(i = 0; i < 10; i++)
67
68 if(max < a[i])
69
70 max = a[i];
71
72 printf("%d",max);
73
74 system("pause"); return 0;}
75
76 4
77 #include<stdio.h>
78 #include<stdlib.h>
79 int main() {
80 int a,b,c,t;
81 scanf("%d %d %d",&a,&b,&c);
82 if(a<b)
83 {
84 t=b; b=a; a=t; }
85 if(a<c)
86 {
87 t=a; a=c; c=t; }
88 if(c>b)
89 { t=b; b=c; c=t; }
90 printf("%d %d %d",a,b,c);
91
92 system("pause");
93 return 0;
94 } 5.
95 #include<stdio.h>
96 #include<stdlib.h>
97 int main()
98 {
99 int a,b,c;
100 scanf("%d %d",&a,&b);
101
102 while(a%b)
103
104 { c=a%b; a=b; b=c;}
105
106 printf("%d",b);
107 system("pause");
108 return 0; }
