Submission #139242

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
139242	2019-07-31 12:55:03	abacaba	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	339 ms	82016 KiB

skyscraper

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#include <bits/stdc++.h>
using namespace std;
 
const int inf = 2e9;
const int N = 3e4 + 15;
int n, m, d[N];
vector <pair <int, int> > g[N];
pair <int, int> a[N];
priority_queue <pair <int, int> > q;
unordered_set <int> used[N], is[N];
int main() {
  fill(d, d + N, inf);
    scanf("%d%d", &n, &m);
    for(int i = 0; i < m; ++i) {
      scanf("%d%d", &a[i].first, &a[i].second);
      is[a[i].first].insert(a[i].second);
    }
    for(int i = 0; i < m; ++i) {
      int b = a[i].first, p = a[i].second;
      int cnt = 0;
      if(used[b].find(p) != used[b].end())
        continue;
      used[b].insert(p);
      while(b - p >= 0) {
        b -= p;
        g[a[i].first].push_back({++cnt, b});
        if(is[b].find(p) != is[b].end())
          break;
      }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:16:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d%d", &a[i].first, &a[i].second);
      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 14 / 14
• Subtask 4: 21 / 21
• Subtask 5: 43 / 43