#include<stdio.h>#include<stdlib.h>#include<string.h>//#include <cstdio>1.//A + B轉換爲幾進制 intmain(){int a,b,d;//d是幾進制 scanf("%d%d%d",&a,&b,&d);int sum = a + b;int ans[31], num =0;//ans 存放D進制的每一位數據while(sum !=0){
ans[num++]= sum % d;
sum = sum / d;}for(int i = num -1; i >=0; i--){printf("%d",ans[i]);}system("pause");return0;}*/2.//判斷是否是迴文串 intmain(){char str[225];scanf("%s",str);//scanf("%[^\n]",str);int x =strlen(str);int length = x/2-1;int flag =0;for(int i =0; i < length; i++){if(str[i]== str[x-1-i]){
flag =1;}}if(flag ==1){printf("YES");}else{printf("NO");}system("pause");return0;}*///(同一道題)按答案寫constint maxn =256;//判斷字符串str是否是“迴文串”
bool judge(char str[]){int len =strlen(str);//字符串長度for(int i =0; i < len /2; i++){if(str[i]!= str[len-1-i]){//如果對稱位置不同 return false;}}return true;//是“迴文串” }intmain(){char str[maxn];while(gets(str)){
bool flag =judge(str);//調用函數判斷str是不是迴文串if(flag == true){printf("YES\n");}else{printf("NO\n");}}system("pause");return0;}*/3.//說反話 intmain(){int num =0;//單詞的個數char ans[90][90];while(scanf("%s",ans[num])!=EOF){//這樣居然可以一行存單詞
num++;//單詞個數加1 }for(int i = num -1; i >=0;i--){printf("%s",ans[i]);//這樣居然可以打印出一行的單詞 if(i >0)printf(" ");}system("pause");return0;}*///同一道題intmain(){char str[90];gets(str);int len =strlen(str), r =0, h =0;//r 爲行, h爲列char ans[90][90];//ans[0]~ans[r]存放單詞的for(int i =0; i < len; i++){if(str[i]!=' '){//如果不是空格,則存放至ans[r][h],並令h++
ans[r][h++]= str[i];}else{
ans[r][h]='\0';//末尾是結束符\0
r++;
h =0;}}for(int i = r; i >=0; i--){printf("%s",ans[i]);if(i >0){printf(" ");//要理解 }}system("pause");return0;}