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谁来教我c++

2025-08-14 10:26:52

发布于：上海

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#include <iostream>
using namespace std;

int main() {
// 声明三个变量存储油桶中的油量
int oil1, oil2, oil3;
// 读取输入的三个油桶油量
cin >> oil1 >> oil2 >> oil3;

// 计算到达西湖需要的最小油量
const int required = 18;  // 300km / 100km * 6L = 18L

// 检查是否有任何一个油桶的油量足够
if (oil1 >= required || oil2 >= required || oil3 >= required) {
    cout << "YES" << endl;
} else {
    cout << "NO" << endl;
}

return 0;

}

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挂逼杨悦麟

#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n, m;
    cin >> n >> m;
    const int total = n * m;
    int* img1 = new int[total];
    for (int i = 0; i < total; ++i) {
        cin >> img1[i];
    }
    int same = 0;
    for (int i = 0; i < total; ++i) {
        int pixel;
        cin >> pixel;
        if (pixel == img1[i]) {
            same++;
        }
    }
    delete[] img1;
    double similarity = (static_cast<double>(same) / total) * 100;
    cout << fixed << setprecision(2) << similarity << endl;
    
    return 0;
}

2025-08-18 来自上海

挂逼杨悦麟

#include <iostream>
#include <vector>
using namespace std;

vector<int> factorize(int n, int k) {
    vector<int> factors;
    int remaining = n;
    for (int i = 1; i < k; ++i) {
        for (int f = 2; f * f <= remaining; ++f) {
            if (remaining % f == 0 && (remaining / f) >= 1) {
                factors.push_back(f);
                remaining /= f;
                break;
            }
        }
        if (factors.size() < i) {
            if (remaining > 1 && (k - i) == 1) {
                factors.push_back(remaining);
                remaining = 1;
            } else {
                return {};
            }
        }
    }
    if (remaining <= 1) return {};
    factors.push_back(remaining);
    
    return factors;
}

int main() {
    int n, k;
    cin >> n >> k;
    
    vector<int> result = factorize(n, k);
    
    if (result.empty()) {
        cout << -1 << endl;
    } else {
        for (int i = 0; i < result.size(); ++i) {
            if (i > 0) cout << " ";
            cout << result[i];
        }
        cout << endl;
    }
    
    return 0;
}

2025-08-18 来自上海

谁来教我c++

#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    // 定义目标数值数组
    double targets[] = {1.1, 2.2, 3.3, 4.4, 5.5};
    // 读取输入的实数
    double y;
    cin >> y;
    
    // 检查输入的数属于哪个目标值的附近范围
    for (double x : targets) {
        if (y >= x - 0.4 && y <= x + 0.4) {
            // 找到匹配的目标值，输出并结束程序
            cout << fixed << setprecision(1) << x << endl;
            return 0;
        }
    }
    
    // 题目保证输入一定在某个数字附近，所以这里理论上不会执行
    return 0;
}

2025-08-14 来自上海

谁来教我c++

回复谁来教我c++

#include <iostream>
#include <iomanip>

int main() {
int electricity;
std::cin >> electricity;

double cost = 0;

if (electricity <= 150) {
    cost = electricity * 0.4463;
} else if (electricity <= 450) {
    cost = 150 * 0.4463 + (electricity - 150) * 0.4663;
} else {
    cost = 150 * 0.4463 + 300 * 0.4663 + (electricity - 450) * 0.5663;
}

// 设置输出精度为11位小数
printf("%.1lf",cost);
return 0;

}

2025-08-14 来自上海

谁来教我c++

回复谁来教我c++

#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;  // 读取同学数量
    
    int height;
    cin >> height;  // 先读取第一个身高
    
    // 初始化最大值和最小值为第一个身高
    int max_h = height;
    int min_h = height;
    
    int i = 1;
    // 使用while循环读取剩余的n-1个身高
    while (i < n) {
        cin >> height;
        
        // 更新最大值
        if (height > max_h) {
            max_h = height;
        }
        
        // 更新最小值
        if (height < min_h) {
            min_h = height;
        }
        
        i++;
    }
    
    // 计算差值
    int diff = max_h - min_h;
    
    // 输出结果
    cout << max_h << " " << min_h << " " << diff << endl;
    
    return 0;
}

2025-08-15 来自上海

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