Submission #262999

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
262999	2020-08-13 11:45:26	_7_7_	Circle selection (APIO18_circle_selection)	C++14	100 / 100	1376 ms	32616 KiB

circle_selection

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#include <bits/stdc++.h>                                           
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
//#define int long long
//#pragma GCC optimize("Ofast")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
 
 
#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define fastio ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define all(x) x.begin(), x.end()
#define sz(s) (int)s.size()
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define s second
#define f first
 
 
 
 
typedef pair < long long, long long > pll;    
typedef pair < int, int > pii;  
typedef unsigned long long ull;         
typedef vector < pii > vpii;
 
 
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Compilation message (stderr)

circle_selection.cpp:87:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   87 | main () {
      |       ^
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:88:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   88 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
circle_selection.cpp:90:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   90 |   scanf("%d%d%d", &a[i].x, &a[i].y, &a[i].r);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
circle_selection.cpp:50:17: warning: 'Mn.point::id' may be used uninitialized in this function [-Wmaybe-uninitialized]
   50 |   return id < a.id;
      |                 ^~
circle_selection.cpp:107:10: note: 'Mn.point::id' was declared here
  107 |    point Mn;
      |          ^~

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 15 / 15
• Subtask 4: 23 / 23
• Subtask 5: 30 / 30
• Subtask 6: 13 / 13