Submission #964843

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
964843	2024-04-17T16:08:18 Z	Ahmed57	Teams (IOI15_teams)	C++17	Compilation error	0 ms	0 KB

teams

#include "bits/stdc++.h"
using namespace std;
int NODES = 0;
int L[3000001],R[3000001],ST[3000001];
int newleaf(int val){
    NODES++;
    L[NODES] = -1;
    R[NODES] = -1;
    ST[NODES] = val;
    return NODES;
}
int newparent(int l,int r){
    NODES++;
    L[NODES] = l;
    R[NODES] = r;
    ST[NODES] = ST[l]+ST[r];
    return NODES;
}
int build(int l,int r){
    if(l==r)return newleaf(0);
    int md = (l+r)/2;
    return newparent(build(l,md),build(md+1,r));
}
int update(int p,int l,int r,int idx){
    if(l==r)return newleaf(1+ST[p]);
    int md = (l+r)/2;
    if(idx<=md)return newparent(update(L[p],l,md,idx),R[p]);
    else return newparent(L[p],update(R[p],md+1,r,idx));
}
int query(int p1,int p2,int l,int r,int lq,int rq){
    if(l>=lq&&r<=rq){
        return ST[p2]-ST[p1];
    }
    if(r<lq||l>rq)return 0;
    int md = (l+r)/2;
    return query(L[p1],L[p2],l,md,lq,rq)+query(R[p1],R[p2],md+1,r,lq,rq);
}
int root[100001],n;
vector<pair<int,int>> v;
void init(int N,int A[],int B[]){
    n = N;
    for(int i = 0;i<N;i++){
        v.push_back({A[i],B[i]});
    }
    sort(v.begin(),v.end());
    root[0] = build(1,n);
    for(int i = 1;i<=v.size();i++){
        root[i] = update(root[i-1],1,n,v[i-1].second);
    }
}
int w(int a,int b){
    int it = lower_bound(v.begin(),v.end(),make_pair(a+1,0))-v.begin();
    int it2 = lower_bound(v.begin(),v.end(),make_pair(b+1,0))-v.begin();
    return query(root[it],root[it2],1,n,b,n);
}
bool can(int m,int k[]){
    vector<int> K;
    K.push_back(0);
    for(int i = 0;i<m;i++){
        K.push_back(k[i]);
    }
    sort(K.begin(),K.end());
    long long dp[m+1]; dp[0] =0;
    for (int x=1; x <= m; x++) {
        dp[x] = 1e9;
        for(int i = 0;i<x;i++){
            dp[x] = min(dp[x],dp[i]+w(K[i],K[x])-K[x]);
        }
    }
    for(int i = 1;i<=m;i++){
        if(dp[i]<0)return 0;
    }
    return 1;
}

int main(){
    int n;
    cin>>n;
    int A[n],B[n];
    for(int i = 0;i<n;i++)cin>>A[i]>>B[i];
    init(n,A,B);
    int q;cin>>q;
    while(q--){
        int k;cin>>k;
        int lol[k];
        for(int i = 0;i<k;i++)cin>>lol[i];
        cout<<can(k,lol)<<endl;
    }
}

Compilation message

teams.cpp: In function 'void init(int, int*, int*)':
teams.cpp:47:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for(int i = 1;i<=v.size();i++){
      |                   ~^~~~~~~~~~
teams.cpp: In function 'int w(int, int)':
teams.cpp:52:61: warning: conversion from '__gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >::difference_type' {aka 'long int'} to 'int' may change value [-Wconversion]
   52 |     int it = lower_bound(v.begin(),v.end(),make_pair(a+1,0))-v.begin();
      |              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
teams.cpp:53:62: warning: conversion from '__gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >::difference_type' {aka 'long int'} to 'int' may change value [-Wconversion]
   53 |     int it2 = lower_bound(v.begin(),v.end(),make_pair(b+1,0))-v.begin();
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
teams.cpp: In function 'int main()':
teams.cpp:77:9: warning: declaration of 'n' shadows a global declaration [-Wshadow]
   77 |     int n;
      |         ^
teams.cpp:38:18: note: shadowed declaration is here
   38 | int root[100001],n;
      |                  ^
/usr/bin/ld: /tmp/ccTqGQjE.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccg6sHlG.o:teams.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status