Expression
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
Petya studies in a school and he adores Maths. His class has been studying arithmetic expressions. On the last class the teacher wrote three positive integers a, b, c on the blackboard. The task was to insert signs of operations '+' and '*', and probably brackets between the numbers so that the value of the resulting expression is as large as possible. Let's consider an example: assume that the teacher wrote numbers 1, 2 and 3 on the blackboard. Here are some ways of placing signs and brackets:
1+2*3=7 1*(2+3)=5 1*2*3=6 (1+2)*3=9Note that you can insert operation signs only between a and b, and between b and c, that is, you cannot swap integers. For instance, in the given sample you cannot get expression (1+3)*2.
It's easy to see that the maximum value that you can obtain is 9.
Your task is: given a, b and c print the maximum value that you can get.
Input
The input contains three integers a, b and c, each on a single line (1?≤?a,?b,?c?≤?10).
Output
Print the maximum value of the expression that you can obtain.
Sample test(s)
input
123
output
input
2103
output
60
大致题意：a, b, c三个数，在三个数中，插入“+” 和“*”运算符的任意两个组合，求能组成的表达式的值得最大值。（可以用括号）
解题思路：没啥说的，直接暴力，总共就6种组合。
AC代码：
#include #include #include #include #include #include #include #include #include #include #include #include using namespace std;#define INF 0x7fffffffint x[9];int main(){// #ifdef sxk// freopen("in.txt","r",stdin);// #endif int a,b,c; while(scanf("%d%d%d",&a,&b,&c)!=EOF) { x[0] = a + b + c; x[1] = a + (b * c); x[2] = a * (b + c); x[3] = (a + b) * c; x[4] = (a * b) + c; x[5] = a * b * c; sort(x, x+6); printf("%d\n",x[5]); } return 0;}
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