写c++还是皮皮虾团队内部赛J1-H题解
2025-04-07 19:23:02
发布于：湖北
个人难度：红红红红红红红橙橙
官方难度：红红红红红？红橙黄
T1
经典题目，非常简单
#include <iostream>
using namespace std;
int main() {
int a, b;
cin >> a >> b;
cout << a + b;
return 0;
}
T2
两重for + if判断
可以用两个数组存相对坐标（dx和dy）
最后注意检测（第22行）
#include <iostream>
using namespace std;
const int N = 110;
int n, m;
char g[N][N];
int dx[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
int dy[8] = {-1, 0, 1, -1, 1, -1, 0, 1};
userId_undefined
int main() {
cin >> n >> m;
for (int i = 0; i < n; i++) cin >> g[i];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
if (g[i][j] == '?') {
int cnt = 0;
for (int k = 0; k < 8; k++) {
int x = i + dx[k], y = j + dy[k];
userId_undefined
if (x >= 0 && x < n && y >= 0 && y < m && g[x][y] == '*') cnt++ ;
}
g[i][j] = cnt + '0';
}
for (int i = 0; i < n; i++) cout << g[i];
return 0;
}
T3, T4, T5都是最简单的输出，直接上代码（这里为了方便用的是PY）
T3
print("Hello World! I'm a C++ program.")
T4
print("Hello world")
T5
print('''Nice to meet you
Nice to meet you too''')
T6 这题是数学题，令人尴尬的是本蒟蒻数学很菜所以直接下一道
（此时队长坐不住了）
#include <iostream>
using namespace std;
int main() {
for (int A = 1; A <= 9; ++A) {
for (int B = 0; B <= 9; ++B) {
for (int C = 0; C <= 9; ++C) {
for (int D = 0; D <= 9; ++D) {
int num = A * 10000000 + 2 * 1000000 + B * 100000 + 0 * 10000 + C * 1000 + 2 * 100 + D * 10 + 4;
if ((D * 10 + 4) % 8 == 0) {
int digitSum = A + 2 + B + 0 + C + 2 + D + 4;
if (digitSum % 9 == 0) {
cout << num << endl;
return 0;
}
}
}
}
}
}
return 0;
}
T7
这道题目直接求积然后数字逆序即可
注意不能用to_string()再字符串逆序，因为会有前导0
#include <bits/stdc++.h>
using namespace std;
int main() {
int a, b;
cin >> a >> b;
int c = a * b;
int sum = 0;
while (c > 0) {
sum = sum * 10 + c % 10;
c /= 10;
}
cout << sum;
return 0;
}
T8
重点是质数判断，剩下的就好做了
#include <iostream>
#include <cmath>
#include <string>
using namespace std;
bool prime(int x);
int main() {
string str;
int a[26] = {0};
int max = 0, min = 9999;
cin >> str;
for (int i = 0; i < str.length(); i++) a[str[i] - 'a'] += 1;
for (int i = 0; i < 26; i++) {
if (max < a[i]) max = a[i];
if (min > a[i] && a[i] != 0) min = a[i];
}
if (prime(max - min)) cout << "Lucky Word" << endl << (max - min) << endl;
else cout << "No Answer" << endl << 0 << endl;
return 0;
}
bool prime(int x) {
if(x < 2) return false;
else for(int i = 2; i <= sqrt(x); i++) if(x % i == 0) return false;
return true;
}
T9
个人认为最难的题
主要思路就是按输入顺序一个个按照循环次数减一，直到减成0换到下一位
#include <iostream>
using namespace std;
int s[11000], ans;
int main() {
int n, m; cin >> n >> m;
for (int i = 1; i <= n; i++) cin >> s[i];
int t = m + 1;
while (t <= n + m) {
for (int i = 1; i <= m; i++) {
s[i]--;
if (s[i] == 0) {
s[i] = s[t];
t++;
}
}
userId_undefined
ans++;
}
cout << ans;
return 0;
}
感谢：
题解人@古希腊掌管AC和WA的神
队长@忘川秋库
全部评论 6
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2025-08-06 来自 广东
0催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更催更
2025-08-06 来自 浙江
0
有帮助，赞一个