Submission #868396

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
868396	2023-10-31 11:07:08	lovrot	One-Way Streets (CEOI17_oneway)	C++17	100 / 100	67 ms	21756 KiB

oneway

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#include <cstdio> 
#include <vector> 
#include <cstring> 
#define X first
#define Y second
#define MP make_pair
#define EB emplace_back
using namespace std;
typedef pair<int, int> pii;
const int N = 1e5 + 10;
int n, m, q, A[N], B[N];
int U[N];
int _find(int u) {
  if(U[u] == -1) return u;
  return U[u] = _find(U[u]);
}
void _union(int u, int v) {
  U[_find(u)] = _find(v);
}
int PE[N], DEP[N];
vector<pii> G[N];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

oneway.cpp: In function 'int main()':
oneway.cpp:82:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   82 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
oneway.cpp:86:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |   scanf("%d%d", &u, &v);
      |   ~~~~~^~~~~~~~~~~~~~~~
oneway.cpp:109:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  109 |  scanf("%d", &q);
      |  ~~~~~^~~~~~~~~~
oneway.cpp:113:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  113 |   scanf("%d%d", &u, &v);
      |   ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40