delete pics to save space

history_source/信息学奥赛一本通/1.4.1.13.cpp

@@ -0,0 +1,17 @@
+#include<cstdio>
+using namespace std;
+int main()
+{
+	long long a,b,c;
+	a=b=c=1;
+	int n;
+	scanf("%d",&n);
+	for(int i=3;i<=n;i++)
+	{
+		c=a+b;
+		a=b;
+		b=c;
+	}
+	printf("%ld\n",c);
+	return 0;
+}