delete pics to save space

history_source/挑战程序设计竞赛/2.2.3.cpp

@@ -0,0 +1,43 @@
+#include<cstdio>
+int n;
+char s[2005];
+void solve()
+{
+	int a=0,b=n-1,sum=0;
+	while(a<=b)
+	{
+		bool left=0;
+		for(int i=0;a+i<=b;i++)
+		{
+			if(s[a+i]<s[b-i])
+			{
+				left=1;
+				break;
+			}
+			else if(s[a+i]>s[b-i])
+			{
+				left=0;
+				break;
+			}
+		}
+		if(left) putchar(s[a++]);
+		else putchar(s[b--]);
+		sum++;
+		if(sum%80==0) putchar('\n');
+	}
+}
+void init()
+{
+	scanf("%d",&n);
+	for(int i=0;i<n;i++)
+	{
+		getchar();
+		s[i]=getchar();
+	}
+}
+int main()
+{
+	init();
+	solve();
+	return 0;
+}