A1011. World Cup Betting (20)

With the 2010 FIFA World Cup running, football fans the world over were becoming increasingly excited as the best players from the best teams doing battles for the World Cup trophy in South Africa. Similarly, football betting fans were putting their money where their mouths were, by laying all manner of World Cup bets.

Chinese Football Lottery provided a "Triple Winning" game. The rule of winning was simple: first select any three of the games. Then for each selected game, bet on one of the three possible results -- namely W for win, T for tie, and L for lose. There was an odd assigned to each result. The winner's odd would be the product of the three odds times 65%.

For example, 3 games' odds are given as the following:

 W    T    L
1.1  2.5  1.7
1.2  3.0  1.6
4.1  1.2  1.1

To obtain the maximum profit, one must buy W for the 3rd game, T for the 2nd game, and T for the 1st game. If each bet takes 2 yuans, then the maximum profit would be (4.1*3.0*2.5*65%-1)*2 = 37.98 yuans (accurate up to 2 decimal places).

Input

Each input file contains one test case. Each case contains the betting information of 3 games. Each game occupies a line with three distinct odds corresponding to W, T and L.

Output

For each test case, print in one line the best bet of each game, and the maximum profit accurate up to 2 decimal places. The characters and the number must be separated by one space.

Sample Input

1.1 2.5 1.7
1.2 3.0 1.6
4.1 1.2 1.1

Sample Output

T T W 37.98 

题目大意：

世界杯足彩三串一，赔率为三场赔率相乘的%65，输入三场球胜负平的赔率，求最大期望收入（每注两元）；

代码如下：

#include 

char mp[3] = {'W', 'T', 'L'};
int main()
{
	double f[5], s[5], t[5];
	double temp = 0;
	int j1, j2, j3;

	for (int i = 0; i < 3; i++) {
		scanf ("%lf", &f[i]);
		if (f[i] > temp) {
			temp = f[i];
			j1 = i;
		}
	}
	temp = 0;
	for (int i = 0; i < 3; i++) {
		scanf ("%lf", &s[i]);
		if (s[i] > temp) {
			temp = s[i];
			j2 = i;
		}
	}
	temp = 0;
	for (int i = 0; i < 3; i++) {
		scanf ("%lf", &t[i]);
		if (t[i] > temp) {
			temp = t[i];
			j3 = i;
		}
	}
	printf ("%c %c %c ", mp[j1], mp[j2], mp[j3]);
	printf ("%.2f", (f[j1] * s[j2] * t[j3] * 0.65 -1) * 2);

 	return 0;
}

改进：

赔率读入后直接进行运算，不存储后再运算；

代码如下：

#include 

char mp[3] = {'W', 'T', 'L'};

int main() { 
	double ans = 1.0, temp, a; 
	int max;                                //记录赔率最大值的下标； 
	for (int i =0; i < 3; i++) {
		temp = 0.0;
		for (int j = 0; j < 3; j++) {
			scanf ("%lf", &a);
			if (a > temp) {
				temp = a;
				max = j;
			}
		}
		ans *= temp;
		printf ("%c ", mp[max]);            //输出赔率最大的比赛结果；
	}
	
	printf ("%.2f", (ans * 0.65 - 1) * 2);

 	return 0;
}