oj.uz

Submission #992647

# Submission time Handle Problem Language Result Execution time Memory
992647 2024-06-04T23:35:26 Z PedroBigMan Fish (IOI08_fish) C++14
95 / 100
 393 ms 65536 KB 
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC optimize("Ofast")
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <string>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <deque>
#include <list>
#include <iomanip>
#include <stdlib.h>
#include <time.h>
#include <cstring>
using namespace std;
typedef int ll;
typedef unsigned long long int ull;
typedef long double ld;
#define REP(i,a,b) for(ll i=(ll) a; i<(ll) b; i++)
#define pb push_back
#define mp make_pair
#define pl pair<ll,ll>
#define ff first
#define ss second
#define whole(x) x.begin(),x.end()
#define DEBUG(i) cout<<"Pedro "<<i<<endl
#define INF 1000000000000000000LL
#define EPS ((ld)0.00000000001)
#define pi ((ld)3.141592653589793)
#define VV(vvvv,NNNN,xxxx); REP(iiiii,0,NNNN) {vvvv.pb(xxxx);}
ll mod=1000000007;

template<class A=ll> 
void Out(vector<A> a) {REP(i,0,a.size()) {cout<<a[i]<<" ";} cout<<endl;}

template<class A=ll>
void In(vector<A> &a, ll N) {A cur; REP(i,0,N) {cin>>cur; a.pb(cur);}} 

ll NN; ll x,y, thisans;
    
vector<ll> pp;
vector<pl> range;
    
void ST(vector<ll> arr)
{
    NN= (ll) 1<<(ll) ceil(log2(arr.size()));
    REP(i,0,2*NN) {range.pb(mp(0,0));}
    REP(i,0,NN) {pp.pb(1);}
    REP(i,0,arr.size()) {pp.pb(arr[i]); range[i+NN]=mp(i,i);}
    REP(i,arr.size(),NN) {pp.pb(1); range[i+NN]=mp(i,i);}
    ll cur = NN-1;
    while(cur>0)
    {
        pp[cur]=(pp[2*cur]*pp[2*cur+1])%mod;
        range[cur]=mp(range[2*cur].ff,range[2*cur+1].ss);
        cur--;
    }
}

ll query(ll a,ll b, ll c=1LL) //range [a,b], current node. initially: query(a,b)
{
    if(a>b) {return 1;}
    x=range[c].ff; y=range[c].ss;
    if(y<a || x>b) {return 1;}
    if(x>=a && y<=b) {return pp[c];}
    thisans = (query(a,b,2*c)*query(a,b,2*c+1))%mod;
    return thisans;
}

void update(ll s, ll a, ll b, ll c=1LL) //update LV, range [a,b], current node, current range. initially: update(s,a,b)
{
    if(a>b) {return;}
    x=range[c].ff; y=range[c].ss;
    if(y<a || x>b) {return ;}
    if(x>=a && y<=b) 
    {
        pp[c]+=s; pp[c]%=mod;
        return;
    }
    update(s,a,b,2*c); update(s,a,b,2*c+1);
    pp[c]=(pp[2*c]*pp[2*c+1])%mod;
}


int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
	cout.precision(20);
	ll N, K, M; cin>>N>>K>>M; mod=M;
    vector<pl> p(N,{-1,-1});
    REP(i,0,N) {cin>>p[i].ff>>p[i].ss; p[i].ss--;}
    sort(whole(p));
    vector<pl> to_order(K,{-1,-1}); REP(i,0,K) {to_order[i].ss=i;}
    REP(i,0,N) {to_order[p[i].ss].ff=p[i].ff;}
    sort(whole(to_order));
    vector<ll> limit(K,-1), m(K,-1);
    REP(i,0,K) {m[to_order[i].ss]=i; limit[i]=to_order[i].ff/2;}
    vector<ll> L(N,-1); REP(i,0,N) {L[i]=p[i].ff;} REP(i,0,K) {limit[i]=(ll) (upper_bound(whole(L),limit[i])-L.begin())-1;}
    REP(i,0,N) {p[i].ss=m[p[i].ss];}
    vector<ll> gem(N,-1); REP(i,0,N) {gem[i]=p[i].ss;}
    vector<vector<ll> > pos(K,vector<ll>()); REP(i,0,N) {pos[gem[i]].pb(i);}
    vector<ll> nxt(K,-1); 
    REP(i,0,K) {nxt[i]=*upper_bound(whole(pos[i]),limit[i]);}
    vector<ll> xx(K,1); 
    ST(xx);
    ll gem_ind = 0; ll ans = 0; ll ind=0; ll thisgem;
    while(gem_ind<K && limit[gem_ind]==-1) {gem_ind++; ans++; ans%=mod;}
    ll G; ll B; vector<ll> oc(K,0);
    while(ind<N && gem_ind<K)
    {
        thisgem = gem[ind]; update(1,thisgem,thisgem); oc[thisgem]++;
        while(gem_ind<K && limit[gem_ind]==ind) 
        {
            G=gem_ind;
            B = (ll) (lower_bound(whole(limit),nxt[G]) - limit.begin()) -1;
            ans+=query(0,G-1)*(query(G+1,B)+oc[G]%mod); ans%=mod; 
            gem_ind++;
        }
        ind++;
    }
    if(ans<0LL) {ans+=mod;} cout<<ans<<endl;
    return 0;
}

Compilation message

fish.cpp:1: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    1 | #pragma GCC optimization ("O3")
      | 
fish.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 105 ms 10776 KB Output is correct

Subtask #7
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct

Subtask #8
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct

Subtask #9
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 4872 KB Output is correct
2 Correct 65 ms 5708 KB Output is correct

Subtask #10
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 2 ms 600 KB Output is correct
3 Correct 2 ms 504 KB Output is correct

Subtask #11
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 7248 KB Output is correct
2 Correct 148 ms 10800 KB Output is correct
3 Correct 139 ms 10996 KB Output is correct

Subtask #12
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 11092 KB Output is correct
2 Correct 146 ms 11540 KB Output is correct

Subtask #13
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 7400 KB Output is correct
2 Correct 147 ms 11588 KB Output is correct

Subtask #14
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 11476 KB Output is correct

Subtask #15
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 177 ms 13440 KB Output is correct

Subtask #16
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 13508 KB Output is correct
2 Correct 132 ms 22208 KB Output is correct

Subtask #17
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 297 ms 28412 KB Output is correct
2 Correct 229 ms 25792 KB Output is correct

Subtask #18
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 277 ms 29424 KB Output is correct
2 Correct 277 ms 22132 KB Output is correct
3 Correct 331 ms 34128 KB Output is correct
4 Correct 279 ms 22208 KB Output is correct

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 393 ms 32964 KB Output is correct
2 Runtime error 174 ms 65536 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -