实验任务1
源代码
1 #include<stdio.h>
2 #include<stdlib.h>
3 #include<time.h>
4 #include<windows.h>
5 #define N 80
6
7 void print_text(int line, int col, char text[]);
8 void print_spaces(int n);
9 void print_blank_lines(int n);
10
11 int main(){
12 int line,col,i;
13 char text[N] = "hi,November~";
14
15 srand(time(0));
16
17 for(i = 1;i <= 10; ++i){
18 line = rand() % 25;
19 col = rand() % 80;
20 print_text(line,col,text);
21 Sleep(1000);
22 }
23 return 0;
24 }
25
26
27 void print_spaces(int n){
28 int i;
29
30 for(i = 1;i <= n; ++i)
31 printf(" ");
32 }
33
34
35 void print_blank_lines(int n){
36 int i;
37
38 for(i = 1;i <= n; ++i)
39 printf("\n");
40 }
41
42
43 void print_text(int line,int col,char text[]){
44 print_blank_lines(line-1);
45 print_spaces(col-1);
46 printf("%s", text);
47
48 }
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功能：随机打印hi,November
实验任务2
task2.1源代码
1 #include<stdio.h>
2 long long fac(int n);
3
4 int main(){
5 int i,n;
6
7 printf("Eter n: ");
8 scanf("%d",&n);
9 for(i = 1;i <= n; ++i)
10 printf("%d! = lld\n" ,i,fac(i));
11
12 return 0;
13 }
14
15
16 long long fac(int n){
17 static long long p = 1;
18
19 p = p * n;
20
21 return p;
22 }
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增加一行后源代码
1 #include<stdio.h>
2 long long fac(int n);
3
4 int main(){
5 int i,n;
6
7 printf("Eter n: ");
8 scanf("%d",&n);
9 for(i = 1;i <= n; ++i)
10 printf("%d! = lld\n" ,i,fac(i));
11
12 return 0;
13 }
14
15
16 long long fac(int n){
17 static long long p = 1;
18 printf("p=%lld\n",p);
19 p = p * n;
20
21 return p;
22 }
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task2.2
源代码
1 #include<stdio.h>
2 int func(int,int);
3
4 int main(){
5 int k = 4, m = 1, p1, p2;
6
7 p1=func(k, m);
8 p2=func(k, m);
9 printf("%d, %d\n", p1, p2);
10
11 return 0;
12 }
13
14
15 int func(int a, int b){
16 static int m = 0, i = 2;
17
18 i += m + 1;
19 m = i + a + b;
20
21 return m;
22 }
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实验任务3
源代码
1 #include<stdio.h>
2 long long func(int n);
3
4 int main()
5 {
6 int n;
7 long long f;
8
9 while (scanf("%d",&n)!=EOF){
10 f = func(n) - 1;
11 printf("n = %d, f = %lld\n", n, f);
12 }
13
14 return 0;
15 }
16
17
18 long long func(int n){
19 if(n==0){
20 return 1;
21 }
22 else if(n==1){
23 return 2;
24 }
25 else{
26 return 2 * func(n - 1);
27 }
28
29 }
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实验任务4
源代码
迭代
1 #include<stdio.h>
2 int main(){
3 int n, m;
4 int sum1 = 1;
5 int sum2 = 1;
6 int sum3 = 1;
7 int ans;
8 while(scanf("%d%d", &n, &m)!=EOF){
9 if(m==0){
10 ans = 1;
11 }
12 else{
13 int i = 1;
14 for (i = 1; i <= n; i++){
15 sum1 *= i;
16 }
17 int j = 1;
18 for (j = 1; j <= m; j++){
19 sum2 *= j;
20 }
21 int x = 1;
22 for (x = 1; x<= n - m; x++){
23 sum3 *= x;
24 }
25 ans = sum1 / sum2 / sum3;
26 }
27 printf("n = %d, m = %d, ans = %d\n", n, m, ans);
28 sum1 = 1;
29 sum2 = 1;
30 sum3 = 1;
31 }
32
33 return 0;
34 }
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递归
1 #include<stdio.h>
2 int func(int n, int m);
3
4 int main(){
5 int n, m;
6
7 while(scanf("%d%d", &n, &m) != EOF)
8 printf("n = %d, m = %d, ans = %d\n", n, m, func(n, m));
9
10 return 0;
11 }
12
13 int func(int n, int m){
14 if(n<m){
15 return 0;
16 }
17 else{
18 int a;
19 if(m == 0){
20 a = 1;
21 }
22 else if(m == 1){
23 a = n;
24 }
25 else {
26 return func(n -1, m) + func(n - 1, m - 1);
27 }
28 return a;
29 }
30 }
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实验任务5
源代码
1 #include<stdio.h>
2 #include<stdlib.h>
3 void hanoi(unsigned int n, char from, char temp, char to);
4 void moveplate(unsigned int n, char from, char to);
5
6 int main()
7 {
8 unsigned int n;
9 int count = 0;
10 while(scanf ("%u", &n)!=EOF){
11 hanoi(n, 'A', 'B', 'C');
12 printf("\n");
13 int i=1;
14 for(i = 1; i <= n; i++){
15 count = 2 * count + 1;
16 }
17 printf("一共移动了%d次\n",count);
18 printf("\n");
19 count = 0;
20 }
21 system("pause");
22
23 return 0;
24 }
25
26 void hanoi(unsigned int n, char from, char temp, char to){
27 if (n == 1){
28 moveplate (n, from, to);
29 }
30 else{
31 hanoi(n - 1, from, to, temp);
32 moveplate(n, from, to);
33 hanoi(n - 1, temp, from, to);
34 }
35 }
36
37 void moveplate(unsigned int n, char from, char to){
38 printf("%u : %c-- > %c\n", n, from, to);
39
40 }
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实验任务6
源代码
1 #include<stdio.h>
2 #include<math.h>
3 long func(long s);
4
5 int main()
6 {
7 long s, t;
8
9 printf("Enter a number: ");
10 while(scanf("%ld", &s)!=EOF){
11 t = func(s);
12 printf("new number is: %ld\n\n", t);
13 printf("Enter a number: ");
14 }
15
16 return 0;
17 }
18
19 long func(long s){
20 int n = 0;
21 int m = 0;
22 int i = 0;
23 int j;
24 while(s > 0){
25 n = s % 10;
26 if(n % 2 != 0){
27 m = 10 * m + n;
28 }
29 s /= 10;
30 }
31 while(m > 0){
32 j = m % 10;
33 i = i * 10 + j;
34 m /= 10;
35 }
36 return i;
37 }
38
39
40
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标签：10,return,函数,int,编程,long,试验,func,include From： https://www.cnblogs.com/Eternity91/p/17798407.html