Language: C++

#include <iostream>
#include <algorithm>
#define INF 1000000
using namespace std;
int cost[100][100];
int t[100][100];
int d[100];
int m;

void dcost(int s) {
	bool used[100];
	fill(used, used + 100, false);
	fill(d, d + 100, INF);
	d[s] = 0;
	while (1) {
		int v = -1;
		for (int u = 0; u < m; ++u) {
			if (!used[u] && (v == -1 || d[u] < d[v])) v = u;
		}
		if (v == -1) break;
		used[v] = true;

		for (int u = 0; u < m; ++u) {
			d[u] = d[u] < d[v] + cost[v][u] ? d[u] : d[v] + cost[v][u];
		}
	}
}

void dtime(int s) {
	bool used[100];
	fill(used, used + 100, false);
	fill(d, d + 100, INF);
	d[s] = 0;
	while (1) {
		int v = -1;
		for (int u = 0; u < m; ++u) {
			if (!used[u] && (v == -1 || d[u] < d[v])) v = u;
		}
		if (v == -1) break;
		used[v] = true;

		for (int u = 0; u < m; ++u) {
			d[u] = d[u] < d[v] + t[v][u] ? d[u] : d[v] + t[v][u];
		}
	}
}

int main() {
	int n, k, a, b, p, q, r;
	
	while (cin >> n >> m, !(n == 0 && m == 0)) {
		fill(cost[0], cost[100], INF);
		fill(time[0], time[100], INF);
		while (n--) {
			cin >> a >> b;
			a--; b--;
			cin >> cost[a][b] >> time[a][b];
			cost[b][a] = cost[a][b];
			time[b][a] = time[a][b];
		}
		cin >> k;
		while (k--) {
			cin >> p >> q >> r;
			p--; q--;
			if (r == 1) dtime(p);
			else dcost(p);
			cout << d[q] << endl;
		}
		
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:53:28: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   53 |                 fill(time[0], time[100], INF);
      |                            ^
a.cc:53:39: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   53 |                 fill(time[0], time[100], INF);
      |                                       ^
a.cc:57:52: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                                    ^
a.cc:57:55: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                                       ^
a.cc:57:43: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'time_t(time_t*) noexcept' {aka 'long int(long int*) noexcept'})
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                         ~~~~~~~~~~~~~~~~~ ^~ ~~~~~~~~~~
      |                             |                         |
      |                             |                         time_t(time_t*) noexcept {aka long int(long int*) noexcept}
      |                             std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'}
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'short int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(short int)(time + (((sizetype)a) + ((sizetype)b)))' to 'short int&'
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'short unsigned int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(short unsigned int)(time + (((sizetype)a) + ((sizetype)b)))' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(int)(time + (((sizetype)a) + ((sizetype)b)))' to 'int&'
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'unsigned int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(unsigned int)(time + (((sizetype)a) + ((sizetype)b)))' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(long int)(time + (((sizetype)a) + ((sizetype)b)))' to 'long int&'
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long unsigned int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(long unsigned int)(time + (((sizetype)a) + ((sizetype)b)))' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long long int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(long long int)(time + (((sizetype)a) + ((sizetype)b)))' to 'long long int&'
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:57:55: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long long unsigned int' [-fpermissive]
   57 |                         cin >> cost[a][b] >> time[a][b];
      |                                              ~~~~~~~~~^
      |                                                       |
      |                                                       time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:57:55: error: cannot bind rvalue '(long long unsigned int)(time + (((s