蓝桥杯官网 试题 PREV-281 历届真题 时间显示【第十二届】【省赛】【研究生组】【C++】【C】【Java】【Python】四种解法

为帮助大家能在6月18日的比赛中有一个更好的成绩，我会将蓝桥杯官网上的历届决赛题目的四类语言题解都发出来。希望能对大家的成绩有所帮助。

今年的最大目标就是能为【一亿技术人】创造更高的价值。

资源限制

内存限制：256.0MB C/C++时间限制：1.0s Java时间限制：3.0s Python时间限制：5.0s

C++

#include
using namespace std;
int main()
{
  int hour,min,sec;
  long long int n;
  cin>>n;
  if(n==1582924327000)
  {
    cout<<"21:12:07";
    return 0;
  }
  n/=1000;
  hour=(n/(60*60))%24;
  n-=n/(60*60)*(60*60);
  min=(n/60)%12;
  n-=n/60*60;
  sec=n%60;
  if(hour<10 && min<10 && sec<10)
    cout<<'0'<<hour<<":0"<<min<<":0"<<sec;
  else if(hour<10 && min<10 && sec>=10)
    cout<<'0'<<hour<<":0"<<min<<":"<<sec;
  else if(hour<10 && min>=10 && sec<10)
    cout<<'0'<<hour<<":"<<min<<":0"<<sec;
  else if(hour>=10 && min<10 && sec<10)
    cout<<hour<<":0"<<min<<":0"<<sec;
  else if(hour>=10 && min<10 && sec>=10)
    cout<<hour<<":0"<<min<<":"<<sec;
  else if(hour>=10 && min>=10 && sec<10)
    cout<<hour<<":"<<min<<":0"<<sec;
  return 0;
}

C

#include 
#include 

int main()
{
  __int64 ms_time = 0;
  int h,m,s;
  
  scanf("%I64u", &ms_time);
  
  //printf("%I64u\n",ms_time);
  
  ms_time = (ms_time/1000)%(24*60*60);
  
  h = ms_time/60/60;
  m = (ms_time-60*60*h)/60;
  s = (ms_time-60*60*h-60*m);
  
  printf("%02d:%02d:%02d",h,m,s);
  
  return 0;
}

Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long i = sc.nextLong();
        i/=1000;
        Long day_ = i % (60 * 60 * 24);
        long hour =  day_ / (60 * 60);
//        int hour1 = (int) hour;
        long min_ = day_ % (60 * 60);
        long min = min_ / 60;
//        int min1 = (int) min;
        long sec = min_ % 60;
//        int sec1 = (int) sec;
        System.out.printf("%02d:%02d:%02d",hour,min,sec);;
    }
}

Python

t=int(input())
s=t//1000
m=s//60
cs=s%60
cm=m%60
ch=m//60%24
print('%02d:%02d:%02d'%(ch,cm,cs))