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全部文章（共13篇）

题解 | 小乐乐求和

#include <iostream> using namespace std; int main() { long long n; cin >> n; long long sum = n * (n + 1) / 2; cout << ...

2025-09-30

0 12

题解 | 小乐乐求和

#include <iostream> using namespace std; int main() { long int n; long int sum = 0; cin >> n; for(int i = 1; i <= n; ++i) ...

2025-09-30

0 11

题解 | 成绩

#include <iostream> using namespace std; int main() { int A, B, C, S; cin >> A >> B >> C; S = (A * 2 + B * 3 + C ...

2025-09-30

0 12

题解 | 牛牛学立体

#include <iostream> using namespace std; int main() { int a, b, c, S, V; cin >> a >> b >> c; S = (a * b + a * c ...

2025-09-30

0 13

题解 | 计算机内存

#include <iostream> using namespace std; int main() { int n, x; cin >> n; x = n * 1024 * 1024 / 4; cout << x << e...

2025-09-30

0 10

题解 | 时间转换

#include <iostream> using namespace std; int main() { int seconds; int h, m, s; cin >> seconds; h = seconds / 3600; m...

2025-09-30

0 13

题解 | 求四位数各个数位之和

#include <iostream> using namespace std; int main() { int n; cin >> n; int a = n / 1000; int b = (n / 100) % 10; int ...

2025-09-30

0 12

题解 | 绕距

#include <cmath> #include <iostream> using namespace std; int main() { int n = 2; double x1, y1, x2, y2; cin >> x1 ...

2025-09-30

0 11

题解 | 温标转换

#include <iostream> using namespace std; int main() { double k,c,f; cin>>k; c=k-273.15; f=c*1.8+32; printf("%.9lf&quo...

2025-09-30

0 9

题解 | 反向输出一个四位数

#include <iostream> #include <string> #include <algorithm> using namespace std; int main() { int n; cin >> n; string...

2025-09-27

0 12