delete pics to save space

history_source/ccf 入门篇/U4/4.5.4.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int j[13],a;
+	while(true)
+	{
+		for(int i=0;i<13;i++) j[i]=0;
+		for(int i=0;i<25;i++){
+			cin>>a;
+			j[a-1]=j[a-1]+1;
+		} 
+		for(int i=0;i<13;i++) if(j[i]<2) cout<<i+1;
+	}
+}