问答小游戏 (变态难）

#include<bits/stdc++.h>
#include<windows.h>
using namespace std;
string a[11];
int f = 0;
int main(){
	cout << "问答小游戏 (变态难) " << endl; 
	cout << "揭芷沐 : 抄袭者去死 ！ 作弊者成绩作废[不许复制]"<<endl; 
	cout << "第一题 : 世界上有多少人? (精确到个位) " << endl;
	cin >> a[1];
	if(a[1] == "80000000000") {
		cout << "分数 + 10" << endl;
		f = f + 10;
	}
	cout << "第二题:作者同桌是不是SB?" << endl;
	cin >> a[2];
	if(a[2] == "是" || a[2] == "是的" || a[2] == "肯定是") {
		cout << "分数 + 10"<< endl;
		f = f + 10;
	} 
	cout << "第三题:作者在可达的RP是?"<< endl;
	cin >> a[3];
	if(a[3] == "10000"){
		cout << "分数 + 10"<< endl;
		f = f + 10; 
	} 
	cout << "第四题:CXK是?"<< endl;
	cin >> a[4];
	if(a[4] == "蔡徐坤"){
		cout << "分数 + 10"<< endl;
		f = f + 10;
	} 
	cout << "第五题 : 作者生日是? (年 - 月 - 日)"<< endl;
	cin >> a[5];
	if( a[5] == "2015-2-12" || a[5] == "2014 - 12 - 12"){
        cout << "分数 + 10" << endl;
		f = f + 10;
	} 
	cout << "第六题 : 作者讨厌谁?" << endl;
	cin >> a[6];
	if(a[6] == "张思妮") {
		cout << "分数 + 10" << endl;
		f = f + 10;
	} 
	cout << "第七题 : 在可达 , 说的做多的数字是?" << endl;
	cin >> a[7];
	if(a[7] == "6"){
		cout << "分数 + 10" << endl;
		f = f + 10;
	}
	cout << "第八题 : 作者当过几次榜一? (直接打数字)" << endl;
	cin >> a[8];
	if(a[8] == "0") {
		cout << "分数+10" << endl;
		f = f + 10;
	} 
	cout << "第九题 : 作者在QQ上建的群叫什么？" << endl;
	cin >> a[9];
	if(a[9] == "SB之群") {
		cout << "分数 + 10"  << endl;
		f = f + 10;
	} 
	cout <<"第十题 (送分) : 作者叫什么？" << endl;
	cin >> a[10];
	if(a[10] == "揭芷沐"){
		cout << "分数 + 10" << endl;
		f = f + 10;
	}
	cout << "答题结束了"<< endl;
	cout << "正在出分"<< endl;
	Sleep(50);
	if(f < 60) cout << "你的分数是:" << f << " " << "等级是:D";
	if(f == 60 || f == 70) cout << "你的分数是:" << f << " " << "等级是:C";
	if(f == 80) cout << "你的分数是:" << f << " " << "等级是:B";
	if(f == 90) cout << "你的分数是:" << f << " " << "等级是:A";
	if(f == 100) cout << "你的分数是:" << f << " " << "等级是:A+";
	return 0;
}