内容：
利用高级语言实现集合交、差、并操作
实验数据文件：
代码语言：javascript复制R:
a1 b1 c1
a1 b2 c2
a2 b2 c1
S:
a1 b2 c2
a1 b3 c2
a2 b2 c1
实际输入数据为：
3 3 3
a1 b1 c1
a1 b2 c2
a2 b2 c1
a1 b2 c2
a1 b3 c2
a2 b2 c1其中R的行数为rank1=3，S的行数为rank3=3，RS的列数为col=3。
代码实现：
4.1.交运算：
代码语言：javascript复制#include <bits/stdc .h>
using namespace std;
vector<string> R[200];
vector<string> S[200];
vector<string> ans[200];
int Jiao(int rank1, int rank2, int col)
{
int tot = 0;
for (int i = 0; i < rank1; i )
{
for (int j = 0; j < rank2; j )
{
for (int k = 0; k < col; k )
{
if (R[i][k] == S[j][k])
ans[tot].push_back(R[i][k]);
else
{
ans[tot].clear();
tot--;
break;
}
}
tot ;
}
}
return tot;
}
int main()
{
int rank1, rank2, col;
cin >> rank1 >> rank2 >> col;
for (int i = 0; i < rank1; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
R[i].push_back(c);
}
}
for (int i = 0; i < rank2; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
S[i].push_back(c);
}
}
int rank3 = Jiao(rank1, rank2, col);
for (int i = 0; i < rank3; i )
{
for (auto p : ans[i])
{
cout << p << " ";
}
cout << endl;
}
}运行结果：
4.2 并运算：
代码语言：javascript复制#include <bits/stdc .h>
using namespace std;
vector<string> R[200];
vector<string> S[200];
vector<string> ans[200];
int bing(int rank1, int rank2, int col)
{
int tot = 0;
int flag = 0;
for (int j = 0; j < rank2; j )
{
for (int k = 0; k < col; k )
{
ans[tot].push_back(S[j][k]);
}
tot ;
}
for (int i = 0; i < rank1; i )
{
int flag = 0;
for (int j = 0; j < rank2; j )
{
int flag2=1;
for (int k = 0; k < col; k )
{
if (R[i][k] != S[j][k])
{
flag2 = 0;
break;
}
}
if(flag2==1)
{
flag=1;
break;
}
}
if (flag)
continue;
else
{
for (int k = 0; k < R[i].size(); k )
{
ans[tot].push_back(R[i][k]);
}
tot ;
}
}
return tot;
}
int main()
{
int rank1, rank2,rank3, col;
cin >> rank1 >> rank2 >> col;
for (int i = 0; i < rank1; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
R[i].push_back(c);
}
}
for (int i = 0; i < rank2; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
S[i].push_back(c);
}
}
cout << "-------Bing------------n";
rank3 = bing(rank1, rank2, col);
for (int i = 0; i < rank3; i )
{
for (auto p : ans[i])
{
cout << p << " ";
}
cout << endl;
}
}运行结果
4.3差运算
代码语言：javascript复制#include <bits/stdc .h>
using namespace std;
vector<string> R[200];
vector<string> S[200];
vector<string> ans[200];
int cha(int rank1, int rank2,int col)
{
int tot = 0;
int flag = 0;
for (int i = 0; i < rank1; i )
{
int flag = 0;
for (int j = 0; j < rank2; j )
{
int flag2=0;
for (int k = 0; k <col; k )
{
if (R[i][k] == S[j][k])
;
else
flag2 = 1;
}
if(flag2==0)
{
flag=1;
break;
}
}
if (flag){
for (int k = 0; k <col; k )
{
ans[tot].push_back(R[i][k]);
}
tot ;
}
}
return tot;
}
int main()
{
int rank1, rank2, rank3, col;
cin >> rank1 >> rank2 >> col;
for (int i = 0; i < rank1; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
R[i].push_back(c);
}
}
for (int i = 0; i < rank2; i )
{
for (int j = 0; j < col; j )
{
string c;
cin >> c;
S[i].push_back(c);
}
}
cout << "-------cha------------n";
rank3 = cha(rank1, rank2,col);
for (int i = 0; i < rank3; i )
{
for (auto p : ans[i])
{
cout << p << " ";
}
cout << endl;
}
}运行结果
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