Submission #776577

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
776577	2023-07-08 04:24:48	jamezzz	Dragon 2 (JOI17_dragon2)	C++17	15 / 100	188 ms	25784 KiB

dragon2

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#include <bits/stdc++.h>
using namespace std;
 
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb push_back
#define sz(x) ((int)x.size())
#define all(x) x.begin(),x.end()
#define LINF 1023456789123456789
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ll,int> li;
typedef long double ld;
#define maxn 3005
int n,m,a[maxn],b[maxn],c[maxn],ans[maxn][maxn];
int d1,e1,d2,e2;
ld get(ll a1,ll b1,ll a2,ll b2,ll d1,ll e1,ll d2,ll e2){
  return (ld)((a2-a1)*(b1-e1)+(b2-b1)*(d1-a1))/((e2-e1)*(a2-a1)-(b2-b1)*(d2-d1));
}
int main(){
  sf("%d%d",&n,&m);
  for(int i=1;i<=n;++i){
    sf("%d%d%d",&a[i],&b[i],&c[i]);
  }
 
 
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Compilation message (stderr)

dragon2.cpp: In function 'int main()':
dragon2.cpp:27:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  sf("%d%d",&n,&m);
      |    ^
dragon2.cpp:29:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   sf("%d%d%d",&a[i],&b[i],&c[i]);
      |     ^
dragon2.cpp:31:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |  sf("%d%d%d%d",&d1,&e1,&d2,&e2);
      |    ^
dragon2.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  int q;sf("%d",&q);
      |          ^
dragon2.cpp:42:13: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |   int f,g;sf("%d%d",&f,&g);
      |             ^

• Subtask 1: 15 / 15
• Subtask 2: 0 / 45
• Subtask 3: 0 / 40