delete pics to save space

history_source/信息学奥赛一本通/3.1.2.cpp

@@ -0,0 +1,32 @@
+#include<cstdio>
+int main()
+{
+	char stack[260]={'s','\0'},li;
+	int top=1;
+	while(li=getchar(),li!='\n')
+	{
+		switch(li)
+		{
+			case '(':stack[top++]=li;break;
+			case ')':
+				if(stack[top-1]=='(') top--;
+				else
+				{
+					printf("Wrong\n");
+					return 0;
+				}
+				break;
+			case '[':stack[top++]=li;break;
+			case ']':
+				if(stack[top-1]=='[') top--;
+				else
+				{
+					printf("Wrong\n");
+					return 0;
+				}
+		}
+	}
+	if(top==1) printf("OK\n");
+	else printf("Wrong\n");
+	return 0;
+}