日志
C++20250523
||
1.运算符
+,-,*,/,%
||,&&,!,^
2.分离个，十，百位
#include<iostream>
using namespace std;
int main() {
int a, b, c, d;
cin >> a;
b = (a / 100) * (a / 100);
c = (a / 10 % 10) * (a / 10 % 10);
d =( a % 10)*(a%10);
cout << b << "\n" << c << "\n" << d;
return 0;
}
3.破译密码
#include<iostream>
using namespace std;
int main() {
int a,b,c,d;
cin>>a;
b=a/1000%10;
c=a/10%10;
d=b*10+c;
cout<<(char)d;
return 0;
}
4.比大小
#include<iostream>
using namespace std;
int main() {
int num1,num2;
cin>>num1>>num2;
if(num1>num2){
cout<<"num1="<<num1;
} else {
cout<<"num2="<<num2;
}
return 0;
}
5.判断成绩区间
#include<iostream>
using namespace std;
int main() {
int num1;
cin>>num1;
if(num1>=70&&num1<=80){
cout<<"yes";
} else {
cout<<"no";
}
return 0;
}
6.判断年龄优惠
#include<iostream>
using namespace std;
int main() {
int num1;
cin>>num1;
if(num1<=6||num1>=60){
cout<<"有优惠";
} else {
cout<<"无优惠";
}
return 0;
}
7.判断字符是否为数字0-9
#include<iostream>
using namespace std;
int main() {
char a;
cin>>a;
if(a>='0'&&a<='9'){
cout<<(a-'0')*5;
} else {
cout<<"no";
}
return 0;
}