虽然只是第一天，但是我觉得马上要见劳大了🤯🤯🤯
尤其是类人猿室友
闹到凌晨3点！！！！！！！！！！！！
无敌了孩子们
---------------------------------------好食的-----------------------------------------
伙食不错，比我们XX小学好1000000000000000000倍
—————————————————学习—————————————————
一天有6个多小时上课，每天一考，压力山大，再也不来了
前提是我得活着出去~~~
接下来就day1的练习题答案了
T1.
#include <iostream>
using namespace std;
int main(){
int a,b,c;
cin >> a >> b >> c;
cout << a0.2 + b0.3 + c*0.5;
return 0;
}
T2.
#include <iostream>
using namespace std;
int main(){
int a[11],n,sum = 0;
for(int i = 1;i<=10;i++){
cin >> a[i];
}
cin >> n;
for(int i = 1;i<=10;i++){
if(a[i]<=n+30){
sum ++;
}
cout << sum << endl;
for(int i = 1;i<=10;i++){
if(n + 30 >=a[i]){
cout << a[i] << " ";
}
}
return 0;
}
T3.
#include <iostream>
using namespace std;
int main(){
int a;
char b;
cin >> a>> b;
for(int i = 0;i<=a/2-1;i++){
if(i == 0 or i == a/2-1){
for(int j = 0;j<a;j++){
cout << b;
}
cout << endl;
}else{
cout << b;
for(int i = 1;i<=a-2;i++){cout << " ";}
cout << b;
cout << endl;
}
}
}
T4.
#include <bits/stdc++.h>>
using namespace std;
const int N = 1e5+5;
int a[N];
bool cmp(int x,int y){
if(x%10 != y%10){
return x%10>y%10;
}else{
return x<y;
}
}
int main(){
int n;
cin >> n;
for(int i = 1;i<=n;i++){
cin >> a[i];
}
sort(a+1,a+n+1,cmp);
for(int i =1;i<=n;i++){
cout << a[i] << " " << endl;
}
return 0;
}
T5.
#include <iostream>
using namespace std;
int main(){
for(int i = 0;i<=100;i++){
for(int j = 0;j<=100;j++){
for(int k = 0;k <=100;k++){
if(i + j + k == 100 and k%3 == 0 and i*5 + j *3 + k/3 == 100){
cout << i <<" " << j << " " << k << endl;
}
}
return 0;
}
T6.
#include <iostream>
using namespace std;
int main(){
int n,m = 0;
cin >> n;
for(int i = 0;i<=n;i++){
for(int j = 0;j<=n;j++){
int k = n - i - j;
if(i + j + k == n and k%3 == 0 and i*5 + j *3 + k/3 == n){
m++;
}
cout << m;
return 0;
}
T7.
#include <iostream>
using namespace std;
const int N = 1e5 + 5;
int a[N],s[N];
int main(){
int n,q,k,e;
cin >> n;
for(int i = 1;i<=n;i++){
cin >> a[i];
s[i] = s[i-1] + a[i];
}
cin >> q;
for(int i = 1;i<=q;i++){
int k,e;
cin >> k >> e;
cout << s[e] - s[k-1] << endl;
}
return 0;
}
T8.
#include <iostream>
using namespace std;
bool a(int x){
for(int i = 2;i<x;i++){
if(x%i == 0){
return false;
}
}
return true;
}
int main(){
int x,sum = 0;
cin >> x;
for(int i = 2;i<=x;i++){
if(a(i)){
sum++;
}
}
cout << sum;
return 0;
}
ok，后面就不发了（bushi
因为伪少太懒了😎😎
最后祝大家听取WA声一片
不对手滑了，是AC一片🤡🤡🤡🤡🤡🤡🤡🤡
PS：帮忙顶顶吧，为了下一期同学
点个赞也不是不可以
Bye~
