Submission #344304

# Submission time Handle Problem Language Result Execution time Memory
344304 2021-01-05T13:04:02 Z AmineWeslati Languages (IOI10_languages) C++14
97 / 100
5088 ms 32444 KB
//Never stop trying
/*#pragma GCC target ("avx2")
#pragma GCC optimize ("Ofast")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")*/
#include "bits/stdc++.h"
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
 
typedef long long ll;
typedef string str;
typedef double db;
typedef long double ld;
typedef pair<int, int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<pi> vpi;
typedef vector<str> vs;
typedef vector<ld> vd;
#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
 
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
 
const int MOD = 1e9 + 7; //998244353
const ll INF = 1e18;
const int MX = 2e5 + 10;
const int nx[4] = {0, 0, 1, -1}, ny[4] = {1, -1, 0, 0}; //right left down up
 
template<class T> using V = vector<T>;
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
 
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); } // divide a by b rounded up
//constexpr int log2(int x) { return 31 - __builtin_clz(x); } // floor(log2(x))
 
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
 
ll random(ll a, ll b){
    return a + rng() % (b - a + 1);
}
 
#ifndef LOCAL  
#define cerr if(false) cerr
#endif
#define dbg(x) cerr << #x << " : " << x << endl; 
#define dbgs(x,y) cerr << #x << " : " << x << " / " << #y << " : " << y << endl;
#define dbgv(v) cerr << #v << " : " << "[ "; for(auto it : v) cerr << it << ' '; cerr << ']' << endl;
#define here() cerr << "here" << endl;
 
void IO() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
}
 
#ifndef LOCAL
#include "grader.h"
#endif
#ifdef LOCAL
int language(int x){
	return 0;
}
#endif
 
map<pair<pair<pi,pi>,int>,bool> mp;
 
void excerpt(int E[100]){
	vi cnt(56,0);
	FOR(i,0,97){
		FOR(j,0,56) cnt[j]+=(mp.count({{{E[i],E[i+1]},{E[i+2],E[i+3]}},j}));
	}
	int L,mx=-1;
	FOR(i,0,56) if(ckmax(mx,cnt[i])) L=i;
	L=language(L);

	FOR(i,0,97){
		mp[{{{E[i],E[i+1]},{E[i+2],E[i+3]}},L}]=1;
	}
}
 
#ifdef LOCAL
int main() {
    boost; IO();
    
 
    return 0;
}
#endif
 
/* Careful!!!
    .Array bounds
    .Infinite loops
    .Uninitialized variables / empty containers
    .Multisets are shit
 
   Some insights:
    .Binary search
    .Graph representation
    .Write brute force code
    .Change your approach
*/

Compilation message

lang.cpp: In function 'void excerpt(int*)':
lang.cpp:83:12: warning: 'L' may be used uninitialized in this function [-Wmaybe-uninitialized]
   83 |  L=language(L);
      |    ~~~~~~~~^~~
# Verdict Execution time Memory Grader output
1 Correct 5043 ms 32444 KB Output is correct
# Verdict Execution time Memory Grader output
1 Partially correct 5088 ms 32396 KB Output is partially correct - 88.99%