PAT-B 1018. 锤子剪刀布
2014-05-26 09:25
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1. 依题意对每一局(每一行输入)进行比较、统计
2. 统计结果可以记录在一张map里,或者索性用a_cnt[100], b_cnt[100]这样的数组统计(B,C,J的ASCII值都小于100)
代码:
#include <iostream>
#include <cstring>
using namespace std;
inline bool cmp(char a, char b)
{
return (a=='C'&&b=='J') || (a=='J'&&b=='B') || (a=='B'&&b=='C');
}
int main()
{
int n;
int a_cnt[100]={0, 0}, b_cnt[100]={0, 0};
int a_record[3]={0, 0}, b_record[3]={0, 0};
char a, b;
cin >> n;
for (int i = 0; i < n; ++ i)
{
cin >> a >> b;
if (a == b)
{
++ a_record[1];
++ b_record[1];
} else if (cmp(a, b)) // a win
{
++ a_record[0];
++ b_record[2];
++ a_cnt[a];
} else // b win
{
++ a_record[2];
++ b_record[0];
++ b_cnt[b];
}
}
cout << a_record[0] << " " << a_record[1] << " " << a_record[2] << endl;
cout << b_record[0] << " " << b_record[1] << " " << b_record[2] << endl;
// BCJ -> CJB
int maxx = a_cnt['B'];
char maxx_choice = 'B';
if (a_cnt['C'] > maxx)
{
maxx = a_cnt['C'];
maxx_choice = 'C';
}
if (a_cnt['J'] > maxx)
{
maxx = a_cnt['J'];
maxx_choice ='J';
}
cout << maxx_choice << " ";
maxx = b_cnt['B'];
maxx_choice = 'B';
if (b_cnt['C'] > maxx)
{
maxx = b_cnt['C'];
maxx_choice = 'C';
}
if (b_cnt['J'] > maxx)
{
maxx = b_cnt['J'];
maxx_choice = 'J';
}
cout << maxx_choice;
return 0;
}
2. 统计结果可以记录在一张map里,或者索性用a_cnt[100], b_cnt[100]这样的数组统计(B,C,J的ASCII值都小于100)
代码:
#include <iostream>
#include <cstring>
using namespace std;
inline bool cmp(char a, char b)
{
return (a=='C'&&b=='J') || (a=='J'&&b=='B') || (a=='B'&&b=='C');
}
int main()
{
int n;
int a_cnt[100]={0, 0}, b_cnt[100]={0, 0};
int a_record[3]={0, 0}, b_record[3]={0, 0};
char a, b;
cin >> n;
for (int i = 0; i < n; ++ i)
{
cin >> a >> b;
if (a == b)
{
++ a_record[1];
++ b_record[1];
} else if (cmp(a, b)) // a win
{
++ a_record[0];
++ b_record[2];
++ a_cnt[a];
} else // b win
{
++ a_record[2];
++ b_record[0];
++ b_cnt[b];
}
}
cout << a_record[0] << " " << a_record[1] << " " << a_record[2] << endl;
cout << b_record[0] << " " << b_record[1] << " " << b_record[2] << endl;
// BCJ -> CJB
int maxx = a_cnt['B'];
char maxx_choice = 'B';
if (a_cnt['C'] > maxx)
{
maxx = a_cnt['C'];
maxx_choice = 'C';
}
if (a_cnt['J'] > maxx)
{
maxx = a_cnt['J'];
maxx_choice ='J';
}
cout << maxx_choice << " ";
maxx = b_cnt['B'];
maxx_choice = 'B';
if (b_cnt['C'] > maxx)
{
maxx = b_cnt['C'];
maxx_choice = 'C';
}
if (b_cnt['J'] > maxx)
{
maxx = b_cnt['J'];
maxx_choice = 'J';
}
cout << maxx_choice;
return 0;
}
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