Create 7_Reverse_Integer.cc

cpppy · web-flow · commit 0655fbc09a75 · 2016-08-23T21:10:18.000+08:00
diff --git a/7_Reverse_Integer.cc b/7_Reverse_Integer.cc
@@ -0,0 +1,12 @@
+class Solution {
+public:
+    int reverse(int x) {
+        int num=0;
+        while(x!=0){
+            if(abs(num) > INT_MAX/10 )return 0;  //防止溢出
+            num=num*10+(x%10);
+            x=x/10;
+        }
+        return num;
+    }
+};
