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## Discussion of Problem 1880. Psych Up's Eigenvalues

runtime error (access violation) visual c++
Posted by beslana 2 Oct 2019 14:54
#include <iostream>
#include <stack>

using namespace std;
int main()
{
unsigned short n1, n2, n3;
int a, n=0;
stack<int> group1;
cin >> n1;
for (int i = 0; i <n1; i++) {
scanf_s("%d", &a);  group1.push(a);
}

stack<int> group2;
cin >> n2;
for (int i = 0; i < n2; i++) {
scanf_s("%d", &a);  group2.push(a);
}

stack<int> group3;
cin >> n3;
for (int i = 0; i < n3; i++) {
scanf_s("%d", &a);  group3.push(a);
}

while (!group1.empty()) {
if (group1.top() == group2.top()) {
if (group1.top() == group3.top()) {
n++;
group1.pop();
group2.pop();
group3.pop();
if ((group1.empty()) || group2.empty() || group3.empty()) break;
}
else if (group1.top() > group3.top()) {
group1.pop();
group2.pop();
if (group1.empty() || group2.empty()) break;
}
else group3.pop();
}
if (group1.top() > group2.top())group1.pop();
if (group1.empty()) break;
if (group1.top() < group2.top())group2.pop();
if (group2.empty()) break;
}
cout << n;

}

what's wrong?
Re: runtime error (access violation) visual c++
Posted by beslana 2 Oct 2019 17:44
after else group3.pop();
if (group3.empty()) break;
accapte