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Solutions: word coverage restoration, longest serial number, Xiaoyu buys stationery, Xiaoyu's electricity bill
2022-07-06 04:12:00 【Pandaoxi】
List of articles
Word overlay restore
Title Description
A length of l ( 3 ≤ l ≤ 255 ) l(3\le l\le255) l(3≤l≤255) Is repeatedly pasted with boy
and girl
Two words , The post pasted words may cover the pasted words ( What is not covered is represented by a period ), Eventually, at least one character per word is not covered . How many are there boy How many? girl?
Input format
A line is repeatedly pasted with boy and girl Two word string .
Output format
Two lines , Two integers . First act boy The number of , Second behavior girl The number of .
Examples #1
The sample input #1
......boyogirlyy......girl.......
Sample output #1
4
2
Answer key
// Author:PanDaoxi
#include <iostream>
using namespace std;
int main(){
// Count
int boy=0,girl=0;
string a;
cin>>a;
int len=a.size();
for(int i=0;i<len-2;i++){
boy+=(a[i]=='b'||a[i+1]=='o'||a[i+2]=='y'?1:0);
if(i<len-3) girl+=(a[i]=='g'||a[i+1]=='i'||a[i+2]=='r'||a[i+3]=='l'?1:0);
}
cout<<boy<<endl<<girl;
return 0;
}
Longest hyphen
Title Description
The input length is n n n A sequence of positive integers , The length of the longest serial number in the output sequence is required .
A hyphen means in a sequence , Continuous natural number from small to large .
Input format
first line , An integer n n n.
The second line , n n n It's an integer a i a_i ai, Space between .
Output format
a number , The number of longest hyphens .
Examples #1
The sample input #1
10
1 5 6 2 3 4 5 6 8 9
Sample output #1
5
Tips
Data scale and agreement
about 100 % 100\% 100% The data of , Guarantee 1 ≤ n ≤ 1 0 4 1 \leq n \leq 10^4 1≤n≤104, 1 ≤ a i ≤ 1 0 9 1 \leq a_i \leq 10^9 1≤ai≤109.
Answer key
// Author:PanDaoxi
#include <iostream>
using namespace std;
int main(){
int n,a,b=1,c=0,d;
cin>>n>>a;
for(int i=1;i<n;i++){
cin>>d;
if(a<d&&d-a==1) b++;
else b=1; // A number is also a hyphen
if(b>c) c=b;
a=d;
}
cout<<c;
return 0;
}
Xiaoyu buys stationery
Title Description
The head teacher gave Xiaoyu a task , Go to the stationery store and buy as many signing pens as possible . It is known that the price of a signing pen is 1 1 1 element 9 9 9 horn , And the money given to Xiaoyu by the head teacher is a a a element b b b horn , Xiaoyu wants to know , How many signing pens can she buy at most .
Input format
Enter only one line of two integers , respectively a a a and b b b.
Output format
Output a line of integers , It means how many signing pens Xiaoyu can buy at most .
Examples #1
The sample input #1
10 3
Sample output #1
5
Tips
Data scale and agreement
For all test points , Guarantee 0 ≤ a ≤ 1 0 4 0 \leq a \leq 10^4 0≤a≤104, 0 ≤ b ≤ 9 0 \leq b \leq 9 0≤b≤9.
Answer key
Nothing to say , It's relatively simple .
// Author:PanDaoxi
#include <iostream>
using namespace std;
int main(){
int a,b;
cin>>a>>b;
cout<<(10*a+b)/19;
return 0;
}
The electricity charge of Xiaoyu family
Title Description
Summer is coming , The electricity consumption of each household has increased a lot , The corresponding electricity bill also paid more . Xiaoyu's family received a notice of electricity charge today . Xiaoyu saw that it said : According to the price of electricity in Fujian [2006]27 Regulation No , The monthly electricity consumption is 150 Kilowatt hours and below per kilowatt hour 0.4463 Yuan Executive , The monthly electricity consumption is 151~400 The part of kWh is per kWh 0.4663 Yuan Executive , The monthly electricity consumption is 401 Kilowatt hours and above per kilowatt hour 0.5663 Yuan Executive ; Xiaoyu wants to verify , Is the number of electricity bills due on the electricity bill correct . Please write a program , Total known electricity consumption , According to the tariff , Figure out how much electricity should be paid .
Input format
Enter an integer , Indicates the total electricity consumption ( In kilowatt hours ), No more than 10000.
Output format
Output a number , Keep it after the decimal point 1 position ( The unit is in yuan , Keep it after the decimal point 1 position ).
Examples #1
The sample input #1
267
Sample output #1
121.5
Answer key
Split billing , Write well if
That's all right. .
#include <iostream>
#include <iomanip>
using namespace std;
int main(){
double s;
int n;
cin>>n;
if(n>400) s=150*0.4463+250*0.4663+(n-400)*0.5663;
else if(n>150) s=150*0.4463+(n-150)*0.4663;
else s=n*0.4463;
cout<<fixed<<setprecision(1)<<s;
return 0;
}
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