hlgsdx · April 1, 2019 03:53 · Apr 1, 2019
diff --git a/main.c b/main.c
@@ -0,0 +1,35 @@
+// 字符串反转 "You are so pretty." -> "pretty. so are you"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+void strreverse(char *str,size_t nLength){
+    if(!str) return;
+    for(size_t i=0;i<nLength/2;++i){
+        if(str[i]==str[nLength-i-1]) continue;
+        str[i]=str[nLength-i-1] ^ str[i];
+        str[nLength-i-1]=str[nLength-i-1] ^ str[i];
+        str[i]=str[nLength-i-1] ^ str[i];
+    }
+}
+
+void strmod(char *str){
+    if(!str) return;
+    int pos=0;
+    size_t nLength = strlen(str);
+    //先把字符串整体倒过来
+    strreverse(str,nLength);
+    //再找每个单词倒过来
+    for(int i=0;i<nLength+1;++i){
+        if(str[i]==' '||str[i]=='\0'){
+            strreverse(str+pos,i-pos);
+            pos=i+1;
+        }
+    }
+}
+int main(int argc, char *argv[]){
+    char str[]="You are so pretty.";
+    strmod(str);
+    printf("%s\n",str);
+    return 0;
+}
No results found