HNCU——ACM队集训洛谷官方题单100代码展示

洛谷官方题单100代码展示，如有问题或者是我的代码有问题，欢迎提问与指正

#include<iostream>
#include<cmath>
#define pai 3.141593
using namespace std;
//typedef unsignd long long ll;
/*p1001
int main()
{
	int a, b;
	while (cin >> a >> b)
	{
		int sum = 0;
		sum = a + b;
		cout << sum << endl;
	}
	return 0;
}*/
/*p1000
int main()
{
	cout << "                ********" << endl;
	cout << "               ************" << endl;
	cout << "               ####....#." << endl;
	cout << "             #..###.....##...." << endl;
	cout << "             ###.......######              ###            ###" << endl;
	cout << "                ...........               #...#          #...#" << endl;
	cout << "               ##*#######                 #.#.#          #.#.#" << endl;
	cout << "            ####*******######             #.#.#          #.#.#" << endl;
	cout << "           ...#***.****.*###....          #...#          #...#" << endl;
	cout << "           ....**********##.....           ###            ###" << endl;
	cout << "           ....****    *****...." << endl;
	cout << "             ####        ####" << endl;
	cout << "           ######        ######" << endl;
	cout << "##############################################################" << endl;
	cout << "#...#......#.##...#......#.##...#......#.##------------------#" << endl;
	cout << "###########################################------------------#" << endl;
	cout << "#..#....#....##..#....#....##..#....#....#####################" << endl;
	cout << "##########################################    #----------#" << endl;
	cout << "#.....#......##.....#......##.....#......#    #----------#" << endl;
	cout << "##########################################    #----------#" << endl;
	cout << "#.#..#....#..##.#..#....#..##.#..#....#..#    #----------#" << endl;
	cout << "##########################################    ############" << endl;
	return 0;
}*/
/*p5703
int main()
{
	int m, n;
	while (cin >> m >> n)
	{
		int sum = m * n;
		cout << sum << endl;
		sum = 0;
	}
	return 0;
}*/
/*p5704
int main()
{
	char a, b;
	while (cin >> a)
	{
		b = a - 32;
		cout << b << endl;
	}
	return 0;
}*/
/*p5705
int main()
{
	double m;
	int a, b, c, d;
	while (cin >> m)
	{
		a = (int)m / 100;
		b = ((int)m / 10) % 10;
		c = (int)m % 10;
		d = (int)(m * 10) % 10;
		cout << d << "." << c << b << a << endl;
	}
}*/
/*p5706
int main()
{
	double t,t1;
	int n,n1;
	while (cin >> t >> n)
	{
		t1 = t / n;
		n1 = 2 * n;
		printf("%.3f\n", t1);
		cout << n1 << endl;
	}
}*/
/*p1425
int main()
{
	int a, b, c, d;
	int time1, time2;
	while (cin >> a >> b >> c >> d)
	{
		time1 = a * 60 + b;
		time2 = c * 60 + d;
		int time = time2 - time1;
		int e = time/60;
		int f = time % 60;
		cout << e << " " << f;
	}
}*/
/*p2433
int main()
{
	int n;
	while (cin >> n)
	{
		switch (n)
		{
		case 1:
		{
			cout << "I love Luogu!" << endl;
			break;
		}
		case 2:
		{
			cout << "6 4" << endl;
			break;
		}
		case 3:
		{
			cout << "3" << endl << "12" << endl << "2" << endl;
			break;
		}
		case 4:
		{
			double a = (double)500 / 3;
			printf("%.3f\n", a);
			break;
		}
		case 5:
		{
			cout << "15" << endl;
			break;
		}
		case 6:
		{
			double ca = sqrt(6 * 6 + 9 * 9);
			cout << ca << endl;
			break;
		}
		case 7:
		{
			cout << "110" << endl << "90" << endl << "0" << endl;
			break;
		}
		case 8:
		{
			cout << 2 * 5 * pai << endl << pai * 5 * 5 << endl << (double)4 / 3 * pai * 5 * 5 * 5 << endl;
			break;
		}
		case 9:
		{
			cout << "22" << endl;
			break;
		}
		case 10:
		{
			cout << "9" << endl;
			break;
		}
		case 11:
		{
			cout << (double)100 / 3 << endl;
			break;
		}
		case 12:
		{
			cout << "13" << endl << "R" << endl;
			break;
		}
		case 13:
		{
			double v1 = (double)4 / 3 * pai * 4 * 4 * 4;
			double v2 = (double)4 / 3 * pai * 10 * 10 * 10;
			double v = v1 + v2;
			int s = pow((int)v, 1.0 / 3);
			cout << s << endl;
			break;
		}
		case 14:
		{
			int jg = 110, bm = 10;
			int jgb;
			int min = 0;
			for (int i = 110; i > 0 ; i--)
			{
				int zj = i * bm;
				if (zj >= 3500)
				{
					jgb = i;
				}
				bm++;
			}
			cout << jgb << endl;
			break;
		}
		default:break;
		}
	}
	return 0;
}*/
/*p5708
int main()
{
	double a, b, c, p, s;
	while (cin >> a >> b >> c )
	{
		p = (double)1 / 2 * (a + b + c);
		s = sqrt(p * (p - a) * (p - b) * (p - c));
		printf("%.1f\n", s);
	}
}*/
/*
int main()
{
	int a, b;
	while (cin >> a >> b)
	{
		int sum = a * 10 + b;
		int ans = sum / 19;
		cout << ans << endl;
	}
}*/
/*p5709
int main()
{
	int m, t, s;
	while (cin >> m >> t >> s)
	{
		if (t == 0)
			cout << "0" << endl;
		else if (s >= m * t)
			cout << "0" << endl;
		else
		{
			int sum = (double)m - ((double)s / t);
			cout << sum << endl;
		}
	}
}*/
/*p2181
int main()
{
	ll n;
	while (cin >> n)
	{
		ll answer;
		if (n == 3)
			cout << "0" << endl;
		else if (n == 4)
			cout << "1" << endl;
		else if(n>4)
		{
			answer = n*(n-1)/2*(n-2)/3*(n-3)/4;
			cout << answer << endl;
		}
	}
}*/
/*p5707
int main()
{
	int s, v;
	int s1, v1;
	while (cin >> s >> v)
	{
		double t = (double)s / v;
		if (t <= 470)//470是7：50化为分钟，如果t小于等于470，说明在同一天
		{
			s1 = (int)(470 - t) / 60;
			v1 = (int)(470 - t) % 60;
		}
		else if (t > 470)
		{
			s1 = (int)((470 + 24 * 60) - t) / 60;
			v1 = (int)((470 + 24 * 60) - t) % 60;
		}
		if (s1 < 10)
			cout << "0" << s1 << ":";
		else if (s1 >= 10)
			cout << s1 << ":";
		if (v1 < 10)
			cout << "0" << v1 << endl;
		else if (v1 >= 10)
			cout << v1 << endl;
	}
}*/
/*p3954
int main()
{
	int A, B, C;
	double a, b, c;
	int sum;
	while (cin >> A >> B >> C)
	{
		a = (double)A * 0.2;
		b = (double)B * 0.3;
		c = (double)C * 0.5;
		sum = (double)(a + b + c);
		cout << sum << endl;
	}
}*/