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HuangHai
2025-08-30 18:35:01 +08:00
commit 1f397eca87
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14
C++课程/第十五课循环结构程序设计实例/a的b次方个位数解法_1.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main(){
long int a, b, i, x, m;
cin>>a>>b;
x = a;
for(i = 2; i <= b; ++i){
m = x * a;
x = m % 10;
}
cout<<x<<endl;
return 0;
}

130
C++课程/第十五课循环结构程序设计实例/a的b次方个位数解法_2.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
int a,b;
cin>>a>>b;
//<2F><>λ<EFBFBD><CEBB>
a=a%10;
if(b==0) {
cout<<1<<endl;
return 0;
}
// 0 1 5 6<><36><EFBFBD>ٴη<D9B4><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>
if(a==0 || a==1 ||a==5 || a==6) {
cout<<a<<endl;
return 0;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><32><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>2 4 8 6ѭ<36><D1AD>
if(a==2) {
b=b%4;
if(b==1) {
cout<<2<<endl;
return 0;
}
if(b==2) {
cout<<4<<endl;
return 0;
}
if(b==3) {
cout<<8<<endl;
return 0;
}
if(b==0) {
cout<<6<<endl;
return 0;
}
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>3
if(a==3) {
b=b%4;
if(b==1) {
cout<<3<<endl;
return 0;
}
if(b==2) {
cout<<9<<endl;
return 0;
}
if(b==3) {
cout<<7<<endl;
return 0;
}
if(b==0) {
cout<<1<<endl;
return 0;
}
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4
if(a==4) {
b=b%2;
if(b==1) {
cout<<4<<endl;
return 0;
}
if(b==0) {
cout<<6<<endl;
return 0;
}
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>7
if(a==7) {
b=b%4;
if(b==1) {
cout<<7<<endl;
return 0;
}
if(b==2) {
cout<<9<<endl;
return 0;
}
if(b==3) {
cout<<3<<endl;
return 0;
}
if(b==0) {
cout<<1<<endl;
return 0;
}
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8
if(a==8) {
b=b%4;
if(b==1) {
cout<<8<<endl;
return 0;
}
if(b==2) {
cout<<4<<endl;
return 0;
}
if(b==3) {
cout<<2<<endl;
return 0;
}
if(b==0) {
cout<<6<<endl;
return 0;
}
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>9
if(a==9) {
b=b%2;
if(b==1) {
cout<<9<<endl;
return 0;
}
if(b==0) {
cout<<1<<endl;
return 0;
}
}
return 0;
}

16
C++课程/第十五课循环结构程序设计实例/p166.cpp Normal file
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#include <iostream>
using namespace std;
int main()
{
int val, sum, i;
int TOTAL = (1 + 13) * 13;
int N = 26;
sum = 0;
for (i = 1; i < N; i++) {
cin >> val;
sum += val;
}
printf("%d\n", TOTAL - sum);
return 0;
}

16
C++课程/第十五课循环结构程序设计实例/p166_2.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
int n, m, k, x;
int main() {
cin >> n >> m >> k >> x;
double y = pow(10, k);
cout << (x + (int)y * m) % n << endl;
return 0;
}
/*
ѧϰ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>https://blog.csdn.net/wwwasdirine/article/details/49430131
ÿһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>λ<EFBFBD>õ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>m<EFBFBD><EFBFBD>λ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD>Ӧ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>m<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ĿҪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>m<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>%n<><6E><EFBFBD>ǵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
<EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD>10^k<><6B>Ӧ<EFBFBD>þͿ<C3BE><CDBF><EFBFBD><EFBFBD>˰<EFBFBD>
*/

15
C++课程/第十五课循环结构程序设计实例/p168.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main () {
int s1,s2,max=8,i,day=0;
for (int i=1; i<8; i++) {
cin>>s1>>s2;
if (s1+s2>max) {
max=s1+s2;
day=i;
}
}
if(max>8)cout<<day;
else cout<<"0";
return 0;
}

15
C++课程/第十五课循环结构程序设计实例/test1.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
bool judege(int n) {
//return n & (n - 1) == 0;
return (n & (n - 1) )== 0;
}
int main() {
cout<< judege(1024)<<endl;
return 0;
}

20
C++课程/第十五课循环结构程序设计实例/test2.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int NumberOf21(int n) {
int count = 0;
int k = 1;
while (n != 0) {
count++;
n = (n - 1) & n;
}
return count;
}
int main() {
cout<<NumberOf21(1365765670)<<endl;
return 0;
}

25
C++课程/第十五课循环结构程序设计实例/快速幂_2.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int quick(int a,int b)
{
int s = 1;
while (b > 0) {
if (b & 1) {//b=b>>1<><31>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>϶<EFBFBD><CFB6><EFBFBD>ִ<EFBFBD>и<EFBFBD>if<69>ж<EFBFBD>
s = s * a;
}
a = a * a;
cout<<"b="<<b<<endl;
cout<<"s="<<s<<endl;
cout<<endl;
b = b >> 1;
}
return s;
}
int main() {
printf("%d",quick(2,10));
return 0;
}

BIN
C++课程/第十五课循环结构程序设计实例/第十五课循环结构程序设计实例.pptx Normal file
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Binary file not shown.

7
C++课程/第十五课循环结构程序设计实例/课程说明.txt Normal file
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@@ -0,0 +1,7 @@
C++<2B>γ̵<CEB3>ʮ<EFBFBD><CAAE><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>
<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> a<><61>b<EFBFBD>η<EFBFBD><CEB7>ĸ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD>Ǽ<EFBFBD><C7BC><EFBFBD>
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧģ<EFBFBD><EFBFBD>˼<EFBFBD>롣
<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>N<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>1-9<><39><EFBFBD>ֵĴ<D6B5><C4B4><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD>ȡÿһλ<D2BB><CEBB><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>
<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD>NOIPԴ<EFBFBD>⽲<EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣