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#include <iostream>
#include <vector>
using namespace std;
const int MAX = 100;
void putinArray(vector <int> & orderedpairs, int arr[MAX][MAX], int dom, int rang);
bool RelationOrFunction(int arr[MAX][MAX], int dom, int rang);
int SurOrInj(int arr[MAX][MAX], int dom, int rang);
bool Reflexive(vector <int> pairs, int dom);
bool Symmetric(vector <int> pairs);
bool Antisymmetric(vector <int> pairs);
bool Transitive(vector <int> pairs);
bool FunandRel(int arr[MAX][MAX], int dom, int rang);
void printArray(int arr[MAX][MAX], int dom, int rang);
int main()
{
int testcase, domain, range, pairs, p;
int i = 0;
int j = 0;
vector <int> nums;
int arr[MAX][MAX] = {{0}};
cout << "Please input the amount of test cases: ";
cin >> testcase;
cout << endl;
while(i < testcase)
{
cout << "Please type the amount of ordered pairs: ";
cin >> pairs;
cout << endl;
cout << "Please type the range of the domain: ";
cin >> domain;
cout << endl;
cout << "Please type the range of the range: ";
cin >> range;
cout << endl;
cout << "Please type the pairs: " ;
while(j < (pairs * 2))
{
cin >> p;
nums.push_back(p);
j++;
}
putinArray(nums,arr,domain,range);
printArray(arr,domain,range);
if(RelationOrFunction(arr,domain,range))
{
cout << "Function ";
if(SurOrInj(arr,domain,range) == 1)
{
cout << "Injective ";
}
else if(SurOrInj(arr,domain,range) == 2)
{
cout << "Surjective ";
}
else if(SurOrInj(arr,domain,range) == 3)
{
cout << "Injective Surjective Bijective ";
}
else if(SurOrInj(arr,domain,range) == 4)
{
cout << " ";
}
else if(FunandRel(arr,domain,range))
{
cout << "Relation Reflexive Symmetric Antisymmetric Transitive ";
}
}
else
{
cout << "Relation ";
if(Reflexive(nums,domain))
{
cout << "Reflexive ";
}
if(Symmetric(nums))
{
cout << "Symmetric ";
}
if(Antisymmetric(nums))
{
cout << "Antisymmetric ";
}
if(Transitive(nums))
{
cout << "Transitive ";
}
}
cout << endl;
i++;
}
return 0;
}
void putinArray(vector <int> &orderedpairs, int arr[MAX][MAX], int dom, int rang)
{
const int MAX = 100;
for(int i = 0; i < orderedpairs.size(); i = i + 2)
{
arr[orderedpairs[i] - 1][orderedpairs[i+1] - 1] = 1;
}
}
bool RelationOrFunction(int arr[MAX][MAX], int dom, int rang)
{
int total = 0;
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
total = arr[i][j] + total;
}
if(total == 1)
{
total = 0;
continue;
}
else
{
return false;
}
}
return true;
}
int SurOrInj(int arr[MAX][MAX], int dom, int rang)
{
int total = 0;
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
total = arr[j][i] + total;
}
if(total >= 1)
{
total = 0;
continue;
}
}
if(dom < rang)
{
return 1; //injective
}
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
total = arr[j][i] + total;
}
if(total <= 1)
{
total = 0;
continue;
}
}
if(dom > rang)
{
return 2; //surjective
}
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
total = arr[j][i] + total;
}
if(total == 1)
{
total = 0;
continue;
}
}
if(dom == rang)
{
return 3; //bijective
}
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
total = arr[j][i] + total;
}
if(total >= dom)
{
return 4; //none
}
}
}
bool Reflexive(vector <int> pairs, int dom)
{
int j = 1;
while(j <= dom)
{
for(int i = 0; i < pairs.size(); i = i+2)
{
if(pairs[i] == j && pairs[i+1] == j)
{
j++;
}
}
}
return true;
}
bool Symmetric(vector <int> pairs)
{
int a, b;
for(int i = 0; i < pairs.size(); i=i+2)
{
if(pairs[i] != pairs[i+1])
{
a = pairs[i];
b = pairs[i+1];
for(int j = 0; j < pairs.size(); j = j+2)
{
if(pairs[j] == b && pairs[j+1] == a)
{
return true;
}
}
}
}
return false;
}
bool Antisymmetric(vector <int> pairs)
{
int a, b;
for(int i = 0; i < pairs.size(); i=i+2)
{
if(pairs[i] != pairs[i+1])
{
a = pairs[i];
b = pairs[i+1];
for(int j = 0; j < pairs.size(); j=j+2)
{
if(pairs[j] == b && pairs[j+1] == a)
{
return false;
}
}
}
}
return true;
}
bool Transitive(vector <int> pairs)
{
int a, b, c;
for(int i = 0; i < pairs.size(); i=i+2)
{
if(pairs[i] != pairs[i+1])
{
a = pairs[i];
b = pairs[i+1];
for(int j = 0; j < pairs.size(); j = j+2)
{
if((pairs[i] == b) && (pairs[i+1] != a))
{
c = pairs[i+1];
for(int k = 0; k < pairs.size(); k = k+2)
{
if((pairs[i] == a) && (pairs[i+1] == c))
{
return true;
}
}
}
}
}
}
return false;
}
bool FunandRel(int arr[MAX][MAX], int dom, int rang)
{
if(dom == rang)
{
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
if(i == j)
{
if(arr[i][j] == 1)
{
continue;
}
else
{
return false;
}
}
}
}
}
return true;
}
void printArray(int arr[MAX][MAX], int dom, int rang)
{
for(int i = 0; i < dom; i++)
{
for(int j = 0; j < rang; j++)
{
cout << arr[i][j];
}
cout << endl;
}
}
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