Submission #120415

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
120415	2019-06-24 12:26:28	tinder	Port Facility (JOI17_port_facility)	C++14	78 / 100	1806 ms	824052 KiB

port_facility

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#include <bits/stdc++.h>
using namespace std;
using ii = pair<int, int>;
const int maxn = 2e6 + 6;
const int mod = 1e9 + 7;
int n, s[maxn], t[maxn];
vector<int> g[maxn], w[maxn];
void add_edge(int u, int v, int col) {
  w[u].emplace_back(col);
  w[v].emplace_back(col);
  g[u].emplace_back(v);
  g[v].emplace_back(u);
}
struct info {
  int x, id;
  info () {}
  info (int _x, int _id) {
    x = _x, id = _id;
  }
  bool operator < (const info &that) const {
    return x < that.x;
  }
};
vector<info> ft[maxn];
int ptr[maxn];
 
 
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Compilation message (stderr)

port_facility.cpp: In function 'void insert(int, info, int, int, int)':
port_facility.cpp:34:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m = l + r >> 1;
          ~~^~~
port_facility.cpp: In function 'void update(int, int, int, int, int, int, int)':
port_facility.cpp:42:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(ptr[u] < ft[u].size() and ft[u][ptr[u]].x <= k) ptr[u]++;
         ~~~~~~~^~~~~~~~~~~~~~
port_facility.cpp:45:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  } int m = l + r >> 1;
            ~~^~~
port_facility.cpp: In function 'void build(int, int, int)':
port_facility.cpp:54:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m = l + r >> 1;
          ~~^~~
port_facility.cpp: In function 'void dfs(int)':
port_facility.cpp:64:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[u].size(); i++) {
                 ~~^~~~~~~~~~~~~
port_facility.cpp: In function 'int main(int, const char**)':
port_facility.cpp:97:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
port_facility.cpp:100:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &s[i], &t[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 56 / 56
• Subtask 4: 0 / 22