复兴无基础第四课 分支结构(二)
2025-08-02 20:55:43
发布于：上海
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T1游戏等级划分
#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
if (n >= 80){
cout << "A";
}else if (n >= 60){
cout << "B";
}else{
cout << "C";
}
return 0;
}
T2判断两个数的大小
#include <iostream>
using namespace std;
int main() {
int a, b;
cin >> a >> b;
if (a > b){
cout << ">";
}else if (a < b){
cout << "<";
}else{
cout << "=";
}
return 0;
}
T3字符输入输出
#include <iostream>
using namespace std;
int main() {
char ch;
cin >> ch;
cout << ch << endl;
return 0;
}
T4判断字符
#include <iostream>
using namespace std;
int main() {
char c;
cin >> c;
if ((c >= 'A') && (c <= 'Z')) {
cout << "Capital letter";
}else if((c >= 'a') && (c <= 'z')) {
cout << "Lowercase letter";
}else if((c >= '0') && (c <= '9')) {
cout << "Digital";
}else{
cout << c;
}
return 0;
}
T5今天是星期几
#include <iostream>
using namespace std;
int main() {
int x;
cin >> x;
switch(x) {
case 1:
cout << "Monday";
break;
case 2:
cout << "Tuesday";
break;
case 3:
cout << "Wednesday";
break;
case 4:
cout << "Thursday";
break;
case 5:
cout << "Friday";
break;
case 6:
cout << "Saturday";
break;
case 7:
cout << "Sunday";
}
return 0;
}
T6字符输入输出
#include <iostream>
using namespace std;
int main(){
char a ;
cin >> a ;
cout << a << endl;
return 0;
}
T7计算电费
#include<iostream>
#include<cstdio>
using namespace std;
int main(){
double p;
cin >> p ;
double sum = 0 ;
if(p<=15){
sum=p*0.47;
}
else if(p<=30){
sum = 0.47 * 15 + (p - 15) * 0.89 ;
}
else {
sum = 0.47*15 + 0.89*15 + (p-30);
}
printf("%.2f",sum);
}
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