Submission #285035

#TimeUsernameProblemLanguageResultExecution timeMemory
285035toloraiaArcade (NOI20_arcade)C++14
85 / 100
66 ms8380 KiB
#include <bits/stdc++.h> #define F first #define S second #define mp make_pair #define pb push_back //#define ll __int128 #define ll long long #define int long long #define LEFT(a) ((a)<<1) #define RIGHT(a) (LEFT(a) + 1) #define MID(a,b) ((a+b)>>1) #define MAX(a,b) ((a)>(b)?(a):(b)) #define MIN(a,b) ((a)<(b)?(a):(b)) #define y1 y122 #pragma GCC optimize("Ofast") #pragma GCC target("avx,avx2,fma") #pragma GCC optimization ("unroll-loops") /* #pragma GCC optimize ("O3") #pragma GCC optimize("Ofast") #pragma GCC target("avx2,fma") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #pragma GCC target ("avx2") #pragma GCC optimization ("unroll-loops") #pragma comment(linker, "/STACK: 20000000005") */ using namespace std; const int N = 300005, MOD = 1e9+7; int n; pair < int, int > P[N]; set < int > S; set < int >::iterator I; main() { //freopen ("in.in", "r", stdin);freopen ("out.out", "w", stdout); ios_base::sync_with_stdio(0); cin >> n >> n; for (int i = 1; i <= n; i++) cin >> P[i].F; for (int i = 1; i <= n; i++) cin >> P[i].S; for (int i = 1; i <= n; i++){ int x = P[i].F - P[i].S, y = P[i].F + P[i].S; P[i] = {x, y}; } sort (P+1, P+n+1); for (int i = 1; i <= n; i++){ I = S.upper_bound (P[i].S); if (I == S.begin()){ S.insert (P[i].S); continue; } I--; S.erase (I); S.insert (P[i].S); } cout << (int)S.size() << endl; }

Compilation message (stderr)

Arcade.cpp:18: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
   18 | #pragma GCC optimization ("unroll-loops")
      | 
Arcade.cpp:41:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   41 | main()
      |      ^
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