PAT基础编程题目-7-1 厘米换算英尺英寸

题目详情

题目地址：https://pintia.cn/problem-sets/14/problems/781

解答

C语言版

#include<stdio.h> void Conversion(int cm); int main() { int cm; scanf("%d", &cm); Conversion(cm); return 0; } void Conversion(int cm) { int foot, inch; float m; m = (cm / 100.0) / 0.3048; //换算成米再计算 foot = m; inch = (m - foot) * 100; if (inch % 10 >= 5) //四舍五入 inch = (m - foot) * 10 + 1; else inch = (m - foot) * 10; printf("%d %d", foot, inch); }

C++版

#include<iostream> using namespace std; void Conversion(int cm); int main() { int cm; cin >> cm; Conversion(cm); return 0; } void Conversion(int cm) { int foot, inch; float m; m = (cm / 100.0) / 0.3048; //换算成米再计算 foot = m; inch = (m - foot) * 100; if (inch % 10 >= 5) //四舍五入 inch = (m - foot) * 10 + 1; else inch = (m - foot) * 10; cout << foot << " "<< inch; }

Java版

import java.util.Scanner; public class Main{ private static void conversion(int cm) { int foot, inch; double m; m = ((cm / 100.0) / 0.3048); foot = (int)m; inch = (int)((m-foot)*100); if( inch % 10 >= 5) inch = (int) ((m - foot) * 10 + 1); else inch = (int) (m - foot) * 10; System.out.println(foot+" "+inch); } public static void main(String[] args) { int cm=0; Scanner scanner = new Scanner(System.in); if(scanner.hasNext()) cm = scanner.nextInt(); scanner.close(); conversion(cm); } }

通过上面的耗时对比来看，C语言确实是最快的，其次是C++，Java相比C来说，确实要慢太多了。

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