hdoj 4112 Break the Chocolate

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4112

解题思路:第一种:n*m*k-1, 第二种:ceil(log(n)/log(2))+ceil(log(m)/log(2))+ceil(log(k)/log(2)).

 1 /**************************************************************************
 2 user_id: SCNU20102200088
 3 problem_id: hdoj 4112
 4 problem_name: Break the Chocolate
 5 **************************************************************************/
 6 
 7 #include <algorithm>
 8 #include <iostream>
 9 #include <iterator>
10 #include <iomanip>
11 #include <sstream>
12 #include <fstream>
13 #include <cstring>
14 #include <cstdlib>
15 #include <climits>
16 #include <bitset>
17 #include <string>
18 #include <vector>
19 #include <cstdio>
20 #include <cctype>
21 #include <ctime>
22 #include <cmath>
23 #include <queue>
24 #include <stack>
25 #include <list>
26 #include <set>
27 #include <map>
28 using namespace std;
29 
30 //线段树
31 #define lson l,m,rt<<1
32 #define rson m+1,r,rt<<1|1
33 
34 //手工扩展栈
35 #pragma comment(linker,"/STACK:102400000,102400000")
36 
37 const double EPS=1e-9;
38 const double PI=acos(-1.0);
39 const double E=2.7182818284590452353602874713526;  //自然对数底数
40 const double R=0.5772156649015328606065120900824;  //欧拉常数:(1+1/2+...+1/n)-ln(n)
41 
42 const int x4[]={-1,0,1,0};
43 const int y4[]={0,1,0,-1};
44 const int x8[]={-1,-1,0,1,1,1,0,-1};
45 const int y8[]={0,1,1,1,0,-1,-1,-1};
46 
47 typedef long long LL;
48 
49 typedef int T;
50 T max(T a,T b){ return a>b? a:b; }
51 T min(T a,T b){ return a<b? a:b; }
52 T gcd(T a,T b){ return b==0? a:gcd(b,a%b); }
53 T lcm(T a,T b){ return a/gcd(a,b)*b; }
54 
55 ///////////////////////////////////////////////////////////////////////////
56 //Add Code:
57 ///////////////////////////////////////////////////////////////////////////
58 
59 int main(){
60     std::ios::sync_with_stdio(false);
61     //freopen("in.txt","r",stdin);
62     //freopen("out.txt","w",stdout);
63     ///////////////////////////////////////////////////////////////////////
64     //Add Code:
65     int Case,n,m,k,i;
66     scanf("%d",&Case);
67     for(i=1;i<=Case;i++){
68         scanf("%d%d%d",&n,&m,&k);
69         LL a=(LL)n*m*k-1;
70         int b=ceil(log(n)/log(2))+ceil(log(m)/log(2))+ceil(log(k)/log(2));
71         printf("Case #%d: %I64d %d\n",i,a,b);
72     }
73     ///////////////////////////////////////////////////////////////////////
74     return 0;
75 }
76 
77 /**************************************************************************
78 Testcase:
79 Input:
80 2
81 1 1 3
82 2 2 2
83 Output:
84 Case #1: 2 2
85 Case #2: 7 3
86 **************************************************************************/

posted on 2013-10-11 08:52  SCNU20102200088  阅读(121)  评论(0编辑  收藏  举报

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