考試

#include<bits/stdc++.h>
using namespace std;
int main (){
	int n;
	cin>>n;
	int t=0,tt=0;
	vector<int>a;
	vector<int>b;
	vector<int>c;
	vector<int>d;
	for(int i=0;i<n;++i){
		int temp;
		cin>>temp;
		a.push_back(temp);

	}
	for(int i=0;i<n;++i){
			int temp1;
			cin>>temp1;
			b.push_back(temp1);
		}
	for(int i=0;i<n;++i){
		if(a[i]>b[i]){
			c.push_back(i+1);
			t++;
		}

			else{
				d.push_back(i+1);
				tt++;
			}
	}
	if(t==0){
		cout<<"-1";
	}
	else{
		for(int i=0;i<t;++i){

		cout<<c[i]<<" ";
	}
	}

	cout<<endl;
	if(tt==0){
		cout<<"-1";
	}
	else{
		for(int i=0;i<tt;++i){
		cout<<d[i]<<" ";

	}
	}



}

#include <iostream>
#include <vector>

using namespace std;

int main() {
    int n, m;
    cin >> n >> m;
    vector<vector<int>> scores(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> scores[i][j];
        }
    }

    int best_progress = -1;
    int worst_regret = -1;
    int best_student = 0;
    int worst_student = 0;

    for (int i = 0; i < n; i++) {
        int progress = 0;
        int regret = 0;
        for (int j = 1; j < m; j++) {
            if (scores[i][j] > scores[i][j - 1]) {
                progress += scores[i][j] - scores[i][j - 1];
            } else {
                regret += scores[i][j - 1] - scores[i][j];
            }
        }
        if (progress > best_progress) {
            best_progress = progress;
            best_student = i + 1;
        }
        if (regret > worst_regret) {
            worst_regret = regret;
            worst_student = i + 1;
        }
    }

    cout << best_student << endl;
    cout << worst_student << endl;

    return 0;
}

#include <iostream>
using namespace std;
int a[999]={};
// 遞迴函數，模擬染色的過程
void paintFence(int n, int day, int start) {
    if (n == 1) {
        // 如果柵欄長度為 1，則只需要塗上當天的顏色
        switch (day) {
            case 1: cout << "R"; break;
            case 2: cout << "O"; break;
            case 3: cout << "Y"; break;
            case 4: cout << "G"; break;
            case 5: cout << "B"; break;
            case 6: cout << "I"; break;
            case 7: cout << "V"; break;
        }
        return;
    }
    int third = n / 3; // 計算三等分的大小
    if (n % 3 == 0) {
    	for (int i = start + third; i < start + 2*third; i++) {
    	    a[i-1]=(day + 1) % 7;
    	}
        // 如果能夠完全三等分，則塗中間那一段
    	paintFence(third, (day + 1) % 7 + 1, start);
    	paintFence(third, (day + 2) % 7 + 1, start + 2 * third);

    }
        // 如果無法完全三等分，則直接塗整段


}
int main() {
    int n, day;
    cin >> n >> day;
    paintFence(n, day,);
    for(int i=0;i<n;++i){
        switch (a[i]) {
            case 1: cout << "R"; break;
            case 2: cout << "O"; break;
            case 3: cout << "Y"; break;
            case 4: cout << "G"; break;
            case 5: cout << "B"; break;
            case 6: cout << "I"; break;
            case 7: cout << "V"; break;
        }
    }
    }
    cout << endl;
    return 0;
}