PAT第二次上机题目
5-1
#include <iostream>
#include <cstdlib>
using namespace std;
template <class T> T maxn(T x[], int len)
{
int i;
T store = x[0];
int k = 0;
for (i = 0; i < len; i++)
{
if(x[i] > x[k]) k = i;
}
store = x[k];
return store;
}
class time0
{
private:
int hh,mm,ss;
public:
time0(int a = 0, int b = 0, int c = 0):hh(a),mm(b),ss(c){};
bool operator > (time0 &t);
void display();
};
void time0::display()
{
cout << hh << " " << mm << " " << ss << endl;
}
bool time0::operator > (time0 &t)
{
int pre = 0, beh = 0;
pre = hh * 3600 + mm * 60 + ss;
beh = t.hh * 3600 + t.mm * 60 + ss;
if(pre > beh)return true;
else return false;
}
class date
{
private:
int year,mouth,day;
public:
date(int a = 0, int b = 0, int c = 0):year(a),mouth(b),day(c){};
bool operator > (date &d);
void display();
};
void date::display()
{
cout << year << " " << mouth << " " << day << endl;
}
bool date::operator > (date &d)
{
int pre = 0, beh = 0;
pre = year * 365 + mouth * 30 + day;
beh = d.year * 365 + d.mouth * 30 + day;
if(pre > beh)return true;
else return false;
}
int intArray[100];
double douArray[100];
time0 timeArray[100];
date dateArray[100];
int main()
{
int ope;
int i,j;
while(cin >> ope)
{
if(ope == -1)break;
if(ope == 1)
{
int tot = 0;
while(1)
{
int w;
cin >> w;
if(w == 0)break;
intArray[tot++] = w;
}
double result = 0;
result = maxn<int> (intArray,tot);
cout << result << endl;
}
else if(ope == 2)
{
int tot = 0;
while(1)
{
double w;
cin >> w;
if(w == 0)break;
douArray[tot++] = w;
}
double result = 0;
result = maxn<double> (douArray,tot);
cout << result << endl;
}
else if(ope == 3)
{
int hh1,mm1,ss1;
int tot = 0;
while(1)
{
cin >> hh1;
if(hh1 == 0)break;
cin >> mm1 >> ss1;
time0 t(hh1,mm1,ss1);
timeArray[tot++] = t;
}
time0 result;
result = maxn<time0> (timeArray, tot);
result.display();
}
else if(ope == 4)
{
int hh1,mm1,ss1;
int tot = 0;
while(1)
{
cin >> hh1;
if(hh1 == 0)break;
cin >> mm1 >> ss1;
date t(hh1,mm1,ss1);
dateArray[tot++] = t;
}
date result;
result = maxn<date> (dateArray, tot);
result.display();
}
}
return 0;
}
5-2
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;
template <class T> int addSet(T * myset, T elem,int len)
{
if(len > 100)
{
cout << "Full Set." << endl;
return len;
}
int i, j;
for(i = 0; i < len; i++)
{
if(*(myset + i) == elem)
{
cout << elem << " is already exist!" << endl;
return len;
}
}
*(myset + len) = elem;
cout << len-1 << endl;
len ++;
return len;
}
template <class T> int deleSet(T * myset, T elem, int len)
{
int i, j;
bool flag = false;
int beg = 1;
for(i = 0; i < len; i++)
{
if(*(myset + i) == elem)
{
flag = true;
beg = i;
break;
}
}
if(!flag)
{
cout << elem << " is not exist!" << endl;
return len;
}
cout << beg-1 << endl;
for(i = beg, j = beg + 1; j < len; i++, j++)
{
*(myset + i) = *(myset + j);
}
len --;
return len;
}
template <class T> int findElem(T * myset, T elem, int len)
{
int i, j;
for(i = 0; i < len; i++)
{
if(*(myset + i) == elem)
{
return i;
}
}
return -1;
}
int intSet[100];
double douSet[100];
string StrSet[100];
int main()
{
int intLen = 1, douLen = 1, strLen = 1;
int i;
int ope;
while(cin >> ope)
{
if(ope == 0)break;
if(ope == 1)
{
int nope, inum;
cin >> nope >> inum;
if(nope == 1)
{
intLen = addSet<int> (intSet, inum, intLen);
}
else if(nope == 2)
{
intLen = deleSet<int> (intSet, inum, intLen);
}
else if(nope == 3)
{
int judge = findElem<int> (intSet, inum, intLen);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge-1 << endl;
}
}
}
else if(ope == 2)
{
int nope;
double inum;
cin >> nope >> inum;
if(nope == 1)
{
douLen = addSet<double> (douSet, inum, douLen);
}
else if(nope == 2)
{
douLen = deleSet<double> (douSet, inum, douLen);
}
else if(nope == 3)
{
int judge = findElem<double> (douSet, inum, douLen);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge-1 << endl;
}
}
}
else if(ope == 3)
{
int nope;
string inum;
cin >> nope >> inum;
if(nope == 1)
{
strLen = addSet<string> (StrSet, inum, strLen);
}
else if(nope == 2)
{
strLen = deleSet<string> (StrSet, inum, strLen);
}
else if(nope == 3)
{
int judge = findElem<string> (StrSet, inum, strLen);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge-1 << endl;
}
}
}
}
return 0;
}
5-3
(听说用5-2的代码也能过噢
#include <iostream>
#include <stdlib.h>
using namespace std;
template <class T> class MySet
{
private:
T data[100];
int count;
public:
MySet()
{
count = 0;
};
int addSet(T elem)
{
if(count > 100)
{
cout << "Full Set." << endl;
return count;
}
int i, j;
for(i = 0; i < count; i++)
{
if(data[i] == elem)
{
cout << elem << " is already exist!" << endl;
return count;
}
}
data[count] = elem;
cout << count << endl;
count ++;
return count;
};
int deleSet(T elem)
{
int i, j;
bool flag = false;
int beg = 1;
for(i = 0; i < count; i++)
{
if(data[i] == elem)
{
flag = true;
beg = i;
break;
}
}
if(!flag)
{
cout << elem << " is not exist!" << endl;
return count;
}
cout << beg << endl;
for(i = beg, j = beg + 1; j < count; i++, j++)
{
data[i] = data[j];
}
count --;
return count;
};
int findElem(T elem)
{
int i, j;
for(i = 0; i < count; i++)
{
if(data[i] == elem)
{
return i;
}
}
return -1;
};
};
//int MySet::addSet(T elem)
//int MySet::deleSet(T elem)
//int MySet::findElem(T elem)
int main()
{
MySet<int> intSet;
MySet<double> douSet;
MySet<string> strSet;
int intLen = 1, douLen = 1, strLen = 1;
int i;
int ope;
while(cin >> ope)
{
if(ope == 0)break;
if(ope == 1)
{
int nope, inum;
cin >> nope >> inum;
if(nope == 1)
{
intLen = intSet.addSet(inum);
}
else if(nope == 2)
{
intLen = intSet.deleSet(inum);
}
else if(nope == 3)
{
int judge = intSet.findElem(inum);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge << endl;
}
}
}
else if(ope == 2)
{
int nope;
double inum;
cin >> nope >> inum;
if(nope == 1)
{
douLen = douSet.addSet(inum);
}
else if(nope == 2)
{
douLen = douSet.deleSet(inum);
}
else if(nope == 3)
{
int judge = douSet.findElem(inum);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge << endl;
}
}
}
else if(ope == 3)
{
int nope;
string inum;
cin >> nope >> inum;
if(nope == 1)
{
strLen = strSet.addSet(inum);
}
else if(nope == 2)
{
strLen = strSet.deleSet(inum);
}
else if(nope == 3)
{
int judge = strSet.findElem(inum);
if(judge == -1)
{
cout << inum << " is not exist!" << endl;
}
else
{
cout << judge << endl;
}
}
}
}
return 0;
}
5-4
注意：(备注说明：分数为0时，表示成0z1m，如果结果为负数，那么分子取负数，分母为正数)
#include <iostream>
#include <cstdlib>
#include <sstream>
#include <cmath>
using namespace std;
int small(int a, int b)
{
if(a == 0 || b == 0)return 0;
int t;
if(a < b)
{
t = a; a = b; b = t;
}
int c = a % b;
while(c != 0)
{
a = b;
b = c;
c = a % b;
}
return b;
}
class FS
{
private:
int fz,fm;
public:
FS(int a = 0, int b = 0):fz(a),fm(b){};
FS operator + (const FS &f);
void display();
};
void FS::display()
{
bool flag = false;
if(fz * fm == 0)
{
cout << "0z1m" << endl;
return ;
}
if(fz * fm < 0)
{
flag = true;
}
if(fz < 0)fz = -fz;
if(fm < 0)fm = -fm;
if(flag)cout << "-";
cout << fz << "z" << fm << "m" << endl;
}
FS FS::operator + (const FS &f)
{
bool flag1 = false, flag2 = false; // false - true +
if(fz*fm < 0)flag1 = true;
if(f.fz*f.fm < 0)flag2 = true;
int newfz = 0,newfm = 0;
if(!flag1 && !flag2)
{
int common = 0;
if(fz == 0 || f.fz == 0)
{
if(fz == 0)
{
newfz = f.fz;
newfm = f.fm;
}
else if(f.fz == 0)
{
newfz = fz;
newfm = fm;
}
}
else
{
newfz = fz * f.fm + fm * f.fz;
newfm = fm * f.fm;
}
if(newfz != 0)
{
common = small(newfz,newfm);
newfz /= common;
newfm /= common;
}
}
else if(!flag1 && flag2)
{
int common = 0;
if(fz == 0 || f.fz == 0)
{
if(fz == 0)
{
newfz = f.fz;
newfm = f.fm;
}
else if(f.fz == 0)
{
newfz = fz;
newfm = fm;
}
}
else
{
newfz = fz * f.fm + fm * f.fz;
newfm = fm * f.fm;
}
if(newfz != 0)
{
common = small(newfz,newfm);
newfz /= common;
newfm /= common;
}
}
else if(flag1 && !flag2)
{
int common = 0;
if(fz == 0 || f.fz == 0)
{
if(fz == 0)
{
newfz = f.fz;
newfm = f.fm;
}
else if(f.fz == 0)
{
newfz = fz;
newfm = fm;
}
}
else
{
newfz = fz * f.fm + fm * f.fz;
newfm = fm * f.fm;
}
if(newfz != 0)
{
common = small(newfz,newfm);
newfz /= common;
newfm /= common;
}
}
else if(flag1 && flag2)
{
int common = 0;
newfz = - (fz * f.fm + fm * f.fz);
newfm = fm * f.fm;
if(newfz != 0)
{
common = small(newfz,newfm);
newfz /= common;
newfm /= common;
}
newfz = -newfz;
}
FS f1(newfz,newfm);
return f1;
}
int main()
{
int n;
int i,j,k;
cin >> n;
string s1,s2;
stringstream stream;
int sfz = 0, sfm = 0;
for(k = 1; k <= n; k++)
{
cin >> s1 >> s2;
string s;
for(i = 0; i < s1.length(); i++)
{
if(s1[i] == 'z')
{
stream << s;
stream >> sfz;
stream.clear();
s = "";
continue;
}
if(s1[i] == 'm')
{
stream << s;
stream >> sfm;
stream.clear();
s = "";
break;
}
s += s1[i];
}
FS c1(sfz,sfm);
s = "";
sfz = 0;
sfm = 0;
for(i = 0; i < s2.length(); i++)
{
if(s2[i] == 'z')
{
stream << s;
stream >> sfz;
stream.clear();
s = "";
continue;
}
if(s2[i] == 'm')
{
stream << s;
stream >> sfm;
stream.clear();
s = "";
break;
}
s += s2[i];
}
FS c2(sfz,sfm);
s = "";
sfz = 0;
sfm = 0;
FS c3 = c1 + c2;
c3.display();
}
return 0;
}
5-5
考虑的情况比较多，需要耐心。
#include <iostream>
#include <cstdlib>
#include <string>
#include <sstream>
using namespace std;
class Complex
{
private:
int real, imag;
public:
Complex(int a = 0, int b = 0):real(a), imag(b){};
void display();
Complex operator * (Complex &b);
};
void Complex::display()
{
if(real == 0 && imag == 0)
{
cout << "0" << endl;
return ;
}
else if(real == 0)
{
if(imag != 1 && imag != -1)
cout << imag << "i" << endl;
else if(imag == 1)
cout << "i" << endl;
else
cout << "-i" << endl;
return ;
}
else if(imag == 0)
{
cout << real << endl;
return ;
}
if(imag < 0)
{
if(imag != -1)
cout << real << imag << "i" << endl;
else cout << real << "-i" << endl;
}
else
{
if(imag != 1)
cout << real << "+" << imag << "i" << endl;
else if(imag == 1)
cout << real << "+i" << endl;
}
}
Complex Complex::operator * (Complex &b)
{
int creal = 0, cimag = 0;
creal = real * b.real - imag * b.imag;
cimag = real * b.imag + b.real * imag;
Complex c(creal, cimag);
return c;
}
int main()
{
string s1, s2;
int i;
while (cin >> s1 >> s2)
{
string s;
stringstream stream;
int areal = 0, aimag = 0;
int breal = 0, bimag = 0;
for (i = 0; i < s1.length(); i++)
{
if (i == 0 && s1[0] == '-')
{
s += '-';
continue;
}
if (s1[i] == '+' || s1[i] == '-')
{
stream << s;
stream >> areal;
stream.clear();
s = "";
if (s1[i] == '-')
s += '-';
continue;
}
if (s1[i] == 'i')
{
if(s == "-" || s == "")
{
if(s == "-")aimag = -1;
else aimag = 1;
s = "";
break;
}
stream << s;
stream >> aimag;
stream.clear();
s = "";
break;
}
s += s1[i];
}
if (s != "")
{
stream << s;
stream >> areal;
stream.clear();
s = "";
}
s = "";
for (i = 0; i < s2.length(); i++)
{
if (i == 0 && s2[0] == '-')
{
s += '-';
continue;
}
if (s2[i] == '+' || s2[i] == '-')
{
stream << s;
stream >> breal;
stream.clear();
s = "";
if (s2[i] == '-')
s += '-';
continue;
}
if (s2[i] == 'i')
{
if(s == "-" || s == "")
{
if(s == "-")bimag = -1;
else bimag = 1;
s = "";
break;
}
stream << s;
stream >> bimag;
stream.clear();
s = "";
break;
}
s += s2[i];
}
if (s != "")
{
stream << s;
stream >> breal;
stream.clear();
s = "";
}
Complex A(areal, aimag), B(breal, bimag);
Complex C = A * B;
//A.display();
//B.display();
C.display();
}
return 0;
}
//i -i
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