Count of guarded walls There are N guarding posts on the Great Wall of China. However, not all of the spots have guards. On the Great Wall, we define a wall section guarded if at least one ends of this section has guards. Write a program that gives the count of guarded walls. Input The first line of the standard input contains the count of guarding posts (1≤N≤100). The next N lines contain the description of each post: if the value is 0, there are no guards on this post, if it is 1, there are. Output The first line of the standard output should contain the count of guarded walls. Example Input 12 0 1 1 1 1 0 0 0 1 1 Output 9

Count of guarded walls There are N guarding posts on the Great Wall of China. However, not all of the spots have guards. On the Great Wall, we define a wall section guarded if at least one ends of this section has guards. Write a program that gives the count of guarded walls. Input The first line of the standard input contains the count of guarding posts (1≤N≤100). The next N lines contain the description of each post: if the value is 0, there are no guards on this post, if it is 1, there are. Output The first line of the standard output should contain the count of guarded walls. Example Input 12 0 1 1 1 1 0 0 0 1 1 Output 9

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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