Submission #887866

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
887866	2023-12-15 10:38:29	ad_red	Tri (CEOI09_tri)	C++17	100 / 100	599 ms	4980 KiB

tri

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#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef basic_string<int> B;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
mt19937 mrand(random_device{}()); 
const ll mod=1000000007;
int rnd(int x) { return mrand() % x;}
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head
  
const int N=100100;
const int S=sqrt(N*15);
int n,m;
  
struct pt {
  int x,y;
  pt(int _x=0,int _y=0) : x(_x),y(_y) {}
 
 
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Compilation message (stderr)

tri.cpp: In function 'int main()':
tri.cpp:76:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   76 |         int mid=low+high>>1;
      |                 ~~~^~~~~
tri.cpp:89:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   89 |         int mid=low+high>>1;
      |                 ~~~^~~~~
tri.cpp:121:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  121 |         int mid=low+high>>1;
      |                 ~~~^~~~~
tri.cpp:47:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |   scanf("%d%d",&n,&m);
      |   ~~~~~^~~~~~~~~~~~~~
tri.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |     scanf("%d%d",&p[i].x,&p[i].y);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
tri.cpp:69:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |     scanf("%d%d%d%d",&a.x,&a.y,&b.x,&b.y);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100