Submission #120431

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
120431	2019-06-24 12:59:55	tinder	Port Facility (JOI17_port_facility)	C++14	0 / 100	447 ms	470268 KiB

port_facility

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#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ii = pair<int, int>;
#define x first
#define id second
#define v first
#define w second
using info = pair<int, int>;
const int maxn = 2e6 + 6;
const int mod = 1e9 + 7;
int n, s[maxn], t[maxn];
namespace graph {
  vector<ii> g[maxn];
  void add_edge(int u, int v, int w) {
    g[u].emplace_back(v, w);
    g[v].emplace_back(u, w);
  }
} using namespace graph;
namespace merge_sort_tree {
  vector<info> ft[maxn << 2];
  int ptr[maxn << 2];
  int i, j, k, id;
  info data;
 
 
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Compilation message (stderr)

port_facility.cpp: In function 'void merge_sort_tree::insert(int, int, int)':
port_facility.cpp:35:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = l + r >> 1;
           ~~^~~
port_facility.cpp: In function 'void merge_sort_tree::update(int, int, int)':
port_facility.cpp:47:17: 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:50:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   } int m = l + r >> 1;
             ~~^~~
port_facility.cpp: In function 'void merge_sort_tree::build(int, int, int)':
port_facility.cpp:63:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = l + r >> 1;
           ~~^~~
port_facility.cpp: In function 'int main(int, const char**)':
port_facility.cpp:105:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("in", "r", stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~
port_facility.cpp:106:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
port_facility.cpp:109:8: 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: 0 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 56
• Subtask 4: 0 / 22