제출 #197149

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
197149	2020-01-19 09:49:45	arnold518	Toll (BOI17_toll)	C++14	100 / 100	349 ms	72568 KiB

toll

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 5e5;
const ll INF = 1e15;
int K, N, M, Q;
vector<pii> adj[MAXN+10];
struct Node
{
  vector<vector<ll>> V;
  Node() { V=vector<vector<ll>>(K, vector<ll>(K, INF)); }
};
Node Z;
Node operator + (const Node &p, const Node &q)
{
  Node ret=Node();
  int i, j, k;
  for(i=0; i<K; i++)
  {
    for(j=0; j<K; j++)
    {
      ll val=INF;
      for(k=0; k<K; k++) val=min(val, p.V[i][k]+q.V[k][j]);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

toll.cpp: In function 'void init(int, int, int)':
toll.cpp:43:10: warning: unused variable 'j' [-Wunused-variable]
   int i, j;
          ^
toll.cpp:50:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
toll.cpp: In function 'Node query(int, int, int, int, int)':
toll.cpp:63:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
toll.cpp: In function 'int main()':
toll.cpp:69:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j, k;
         ^
toll.cpp:69:12: warning: unused variable 'k' [-Wunused-variable]
  int i, j, k;
            ^
toll.cpp:70:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d", &K, &N, &M, &Q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:79:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &u, &v, &w);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~
toll.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~

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• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 31 / 31
• Subtask 5: 44 / 44