任务1.1
#include<stdio.h> #define N 4 void test1() { int a[N] = { 1,9,8,4 }; int i; printf("sizeof(a)=%d\n", sizeof(a)); for (i = 0; i < N; ++i) printf(" % p: % d\n", &a[i], a[i]); printf("a=%p\n", a); } void test2() { char b[N] = { '1','9','8','4' }; int i; printf("sizeof(b)=%d\n", sizeof(b)); for (i = 0; i < N; ++i) printf("%p:%c\n", & b[i], b[i]); printf("b=%p\n", b); } int main() { printf("测试1:int类型一维数组\n"); test1(); printf("\n测试2:char类型一维数组\n"); test2(); return 0; }
任务1.2
#include <stdio.h> #define N 2 #define M 4 void test1() { int a[N][M] = { {1, 9, 8, 4}, {2, 0, 4, 9} }; int i, j; printf("sizeof(a) = %d\n", sizeof(a)); for (i = 0; i < N; ++i) for (j = 0; j < M; ++j) printf("%p: %d\n", &a[i][j], a[i][j]); printf("\n"); printf("a = %p\n", a); printf("a[0] = %p\n", a[0]); printf("a[1] = %p\n", a[1]); printf("\n"); } void test2() { char b[N][M] = { {'1', '9', '8', '4'}, {'2', '0', '4', '9'} }; int i, j; printf("sizeof(b) = %d\n", sizeof(b)); for (i = 0; i < N; ++i) for (j = 0; j < M; ++j) printf("%p: %c\n", &b[i][j], b[i][j]); printf("\n"); printf("b = %p\n", b); printf("b[0] = %p\n", b[0]); printf("b[1] = %p\n", b[1]); } int main() { printf("测试1: int型两维数组"); test1(); printf("\n测试2: char型两维数组"); test2(); return 0; }
任务2:
//#include <stdio.h> //#include <string.h> //#define N 80 //void swap_str(char s1[N], char s2[N]); //void test1(); //void test2(); //int main() //{ // printf("测试1: 用两个一维char数组,实现两个字符串交换\n"); // test1(); // printf("\n测试2: 用二维char数组,实现两个字符串交换\n"); // test2(); // return 0; //} // //void test1() { // char views1[N] = "hey, C, I hate u."; // char views2[N] = "hey, C, I love u."; // printf("交换前: \n"); // puts(views1); // puts(views2); // swap_str(views1, views2); // printf("交换后: \n"); // puts(views1); // puts(views2); //} // //void test2() { // char views[2][N] = { "hey, C, I hate u.", // "hey, C, I love u." }; // printf("交换前: \n"); // puts(views[0]); // puts(views[1]); // // swap_str(views[0], views[1]); // // printf("交换后: \n"); // puts(views[0]); // puts(views[1]); //} // //void swap_str(char s1[N], char s2[N]) { // char tmp[N]; // // strcpy(tmp, s1); // strcpy(s1, s2); // strcpy(s2, tmp); //}
任务3.1:
#include <stdio.h> #define N 80 int count(char x[]); int main() { char words[N + 1]; int n; while (gets_s(words) != NULL) { n = count(words); printf("单词数: %d\n\n", n); } return 0; } int count(char x[]) { int i; int word_flag = 0; // 用作单词标志,一个新单词开始,值为1;单词结束,值为0 int number = 0; // 统计单词个数 for (i = 0; x[i] != '\0'; i++) { if (x[i] == ' ') word_flag = 0; else if (word_flag == 0) { word_flag = 1; number++; } } return number; }
任务3.2:
#include <stdio.h> #define N 1000 int main() { char line[N]; int word_len; int max_len; int end; int i; while (gets_s(line) != NULL) { word_len = 0; max_len = 0; end = 0; i = 0; while (1) { while (line[i] == ' ') { word_len = 0; i++; } while (line[i] != '\0' && line[i] != ' ') { word_len++; i++; } if (max_len < word_len) { max_len = word_len; end = i; } if (line[i] == '\0') break; } printf("最长单词: "); for (i = end - max_len; i < end; ++i) printf("%c", line[i]); printf("\n\n"); } return 0; }
任务4:
#include <stdio.h> void dec_to_n(int x, int n) { char hex_map[] = "0123456789ABCDEF"; char result[1000]; int index = 0; while (x > 0) { int remainder = x % n; if (n == 16) { result[index++] = hex_map[remainder]; } else { result[index++] = remainder + '0'; } x /= n; } for (int i = index - 1; i >= 0; i--) { printf("%c", result[i]); } printf("\n"); } int main() { int x; printf("输入一个十进制整数: "); while (scanf_s("%d", &x) != EOF) { dec_to_n(x, 2); // 函数调用: 把x转换成二进制输出 dec_to_n(x, 8); // 函数调用: 把x转换成八进制输出 dec_to_n(x, 16); // 函数调用: 把x转换成十六进制输出 printf("\n输入一个十进制整数: "); } return 0; }
任务5:
#include <stdio.h> #define N 5 // 函数声明 void input(int x[], int n); void output(int x[], int n); double average(int x[], int n); void bubble_sort(int x[], int n); int main() { int scores[N]; double ave; printf("录入%d个分数:\n", N); input(scores, N); printf("\n输出课程分数: \n"); output(scores, N); printf("\n课程分数处理: 计算均分、排序...\n"); ave = average(scores, N); bubble_sort(scores, N); printf("\n输出课程均分: %.2f\n", ave); printf("\n输出课程分数(高->低):\n"); output(scores, N); return 0; } // 函数定义 // 输入n个整数保存到整型数组x中 void input(int x[], int n) { int i; for(i = 0; i < n; ++i) scanf("%d", &x[i]); } // 输出整型数组x中n个元素 void output(int x[], int n) { int i; for(i = 0; i < n; ++i) printf("%d ", x[i]); printf("\n"); } double average(int x[],int n) { int i,sum=0; double j; for(i=0;i<=n;i++) sum+=x[i]; j=sum*1.0/n*1.0; return j; } void bubble_sort(int x[], int n) { int i,u,b,j; for(i=n;i>=0;i--) { for(b=i-1;b>=0;b--) { if(x[i]>x[b]) { u=x[b]; x[b]=x[i]; x[i]=u; } } } for(j=0;j<=n;j++) printf("%d ",x[j]); }
任务6:
#include<stdio.h> #include <string.h> #define N 5 #define M 20 // 函数声明 void output(char str[][M], int n); void bubble_sort(char str[][M], int n); int main() { char name[][M] = {"Bob", "Bill", "Joseph", "Taylor", "George"}; int i; printf("输出初始名单:\n"); output(name, N); printf("\n排序中...\n"); bubble_sort(name, N); // 函数调用 printf("\n按字典序输出名单:\n"); output(name, N); return 0; } // 函数定义 // 功能:按行输出二维数组中的字符串 void output(char str[][M], int n){ int i; for(i = 0; i < n; ++i) printf("%s\n", str[i]); } void bubble_sort(char str[][M], int n) { int j,i; char temp[M]; for(i=0;i<n-1;i++) { for(j=0;j<n-i-1;j++) #include<stdio.h> #include <string.h> int main() { long long int n; char a[100]; int i,j,h,k; while(gets(a)) { long long len=strlen(a); for(j=0;j<=len-1;j++) { for(h=j+1;h<=len-1;h++) { if(a[j]==a[h]) { printf("Yes\n"); k=1; break; } } if(k==1) break; } if(j==len-1) printf("No\n"); } return 0; } { if(strcmp(str[j],str[j+1])>0) { strcpy(temp,str[j]); strcpy(str[j],str[j+1]); strcpy(str[j+1],temp); } } } }
任务7:
#include<stdio.h> #include <string.h> int main() { long long int n; char a[100]; int i,j,h,k; while(gets(a)) { long long len=strlen(a); for(j=0;j<=len-1;j++) { for(h=j+1;h<=len-1;h++) { if(a[j]==a[h]) { printf("Yes\n"); k=1; break; } } if(k==1) break; } if(j==len-1) printf("No\n"); } return 0; }
任务8:
#include <stdio.h> #define N 100 #define M 4 void output(int x[][N], int n); void rotate_to_right(int x[][N], int n); int main() { int t[][N] = {{21, 12, 13, 24}, {25, 16, 47, 38}, {29, 11, 32, 54}, {42, 21, 33, 10}}; printf("原始矩阵:\n"); output(t, M); rotate_to_right(t, M); printf("变换后矩阵:\n"); output(t, M); return 0; } void output(int x[][N], int n) { int i, j; for (i = 0; i < n; ++i) { for (j = 0; j < n; ++j) printf("%4d", x[i][j]); printf("\n"); } } void rotate_to_right(int x[][N], int n) { int i, t, j; for(i = 0;i < n;i++) { t = x[i][n-1]; for(j = n-1;j >= 1;j--) { x[i][j] = x[i][j-1]; } x[i][0] = t; } }
标签:int,void,char,++,实验,printf,include From: https://www.cnblogs.com/daiyifei/p/17832416.html