View Code of Problem 3818

#include<iostream>
#include<algorithm>
#include<vector>
#include<limits>
using namespace std;

int main(){
	int n, m, k;
	while (cin >> n >> m >> k) {
		vector<int> a(m), b(m), c(m);
		for (int i = 0; i < m; i++)
			cin >> a[i] >> b[i] >> c[i];
		while (k--) {
			int x, y;
			cin >> x >> y;
			vector<int> md(m + 1, INT_MAX), flag(m + 1,1);
			md[x] = 0;
			vector<int> list;
			list.push_back(x);
			do {
				for (int i = 0; i < m; i++) 
					if (a[i] == list[list.size() - 1]) {
						md[b[i]] =min(md[a[i]] + c[i], md[b[i]]);
						if (b[i] != y && flag[b[i]]) {
							list.push_back(b[i]);
							flag[b[i]]--;
						}
					}
				list.pop_back();
			} while (!list.empty());
			cout << md[y] << endl;
		}
	}
}
/*
Main.cc: In function 'int main()':
Main.cc:16:26: error: 'INT_MAX' was not declared in this scope
    vector<int> md(m + 1, INT_MAX), flag(m + 1,1);
                          ^~~~~~~
Main.cc:16:26: note: 'INT_MAX' is defined in header '<climits>'; did you forget to '#include <climits>'?
Main.cc:4:1:
+#include <climits>
 #include<limits>
Main.cc:16:26:
    vector<int> md(m + 1, INT_MAX), flag(m + 1,1);
                          ^~~~~~~
*/