zoukankan      html  css  js  c++  java
  • Codeforces 231A

    题目: A. Team

    time limit per test: 2 seconds
    memory limit per test: 256 megabytes
    input: standard input
    output: standard output

    One day three best friends Petya, Vasya and Tonya decided to form a team and take part in programming contests. Participants are usually offered several problems during programming contests. Long before the start the friends decided that they will implement a problem if at least two of them are sure about the solution. Otherwise, the friends won’t write the problem’s solution.

    This contest offers n problems to the participants. For each problem we know, which friend is sure about the solution. Help the friends find the number of problems for which they will write a solution.

    Input

    The first input line contains a single integer n (1 ≤ n ≤ 1000) — the number of problems in the contest. Then n lines contain three integers each, each integer is either 0 or 1. If the first number in the line equals 1, then Petya is sure about the problem’s solution, otherwise he isn’t sure. The second number shows Vasya’s view on the solution, the third number shows Tonya’s view. The numbers on the lines are separated by spaces.

    Output

    Print a single integer — the number of problems the friends will implement on the contest.

    Examples

    Input
    3
    1 1 0
    1 1 1
    1 0 0
    Output
    2
    Input
    2
    1 0 0
    0 1 1
    Output
    1

    Note

    In the first sample Petya and Vasya are sure that they know how to solve the first problem and all three of them know how to solve the second problem. That means that they will write solutions for these problems. Only Petya is sure about the solution for the third problem, but that isn’t enough, so the friends won’t take it.

    In the second sample the friends will only implement the second problem, as Vasya and Tonya are sure about the solution.

    思路:

    1.每行相加大于1记一次数即可;

    代码:

    #include<iostream>
    using namespace std;
    int main(){
    	int n,cnt=0;
    	scanf("%d",&n);
    	for(int i=0;i<n;i++){
    		int a,b,c,t;
    		scanf("%d%d%d",&a,&b,&c);
    		t=a+b+c;
    		if(t>1) cnt++;
    	}
    	printf("%d",cnt);
    	return 0;
    }
    
  • 相关阅读:
    Kafka日志段源码分析
    Kafka日志结构概览
    LDAP统一身份认证解读及实践
    Keycloak集成三方身份提供者的注销流程
    Keycloak会话管理-refreshToken
    Cas校验INVALID_TICKET-not recognized
    如何获取Docker容器的root权限
    OIDC-code to token
    Newrelic集成wildfly报NoClassDefFoundError
    Cookie深入详解
  • 原文地址:https://www.cnblogs.com/yuhan-blog/p/12308975.html
Copyright © 2011-2022 走看看