Submission #1043068

#	Time	Username	Problem	Language	Result	Execution time	Memory
1043068		beaconmc	The Potion of Great Power (CEOI20_potion)	C++14	21 / 100	1561 ms	95824 KiB

potion

#include <bits/stdc++.h>
 
typedef int ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;
 
 
vector<set<ll>> edges[101];
vector<ll> h;
vector<ll> a;
vector<ll> b;
 
void init(int N, int D, int H[]) {
    FOR(i,0,N) h.push_back(H[i]);
}
 
void curseChanges(int U, int A[], int B[]) {
    vector<set<ll>> tempedges;
    tempedges.resize(10001);
    FOR(i,0,U){
        
        a.push_back(A[i]);
        b.push_back(B[i]);
        if (tempedges[A[i]].count(B[i])) tempedges[A[i]].erase(B[i]);
        else tempedges[A[i]].insert(B[i]);
 
        if (tempedges[B[i]].count(A[i])) tempedges[B[i]].erase(A[i]);
        else tempedges[B[i]].insert(A[i]);
        if (i%100==0) edges[i/100] = tempedges;
        
    }
}
 
int mindiff(set<ll>&a, set<ll>&b){
    ll ans = 1000000000;
    vector<vector<ll>> A,B;
    for (auto&i : a) A.push_back({h[i], 0});
    for (auto&i : b) A.push_back({h[i], 1});
 
    sort(A.begin(), A.end());
    if (A.size()==0) return ans;
    FOR(i,0,A.size()-1){
        if (A[i][1] != A[i+1][1]) ans = min(ans, abs(A[i][0]-A[i+1][0]));
    }
    return ans;
}
 
int question(int x, int y, int v) {
    v--;
    ll fuck = (v/100);
    set<ll> X = edges[fuck][x];
    set<ll> Y = edges[fuck][y];

    FOR(i,(v/100)*100+1, v+1){
 
        if (a[i] == x){
            if (X.find(b[i]) != X.end()) X.erase(b[i]);
            else X.insert(b[i]);
        } 
        if (a[i] == y){
            if (Y.find(b[i]) != Y.end()) Y.erase(b[i]);
            else Y.insert(b[i]);
        }
        if (b[i] == x){
            if (X.find(a[i]) != X.end()) X.erase(a[i]);
            else X.insert(a[i]);
        }
        if (b[i] == y){
            if (Y.find(a[i])!= Y.end()) Y.erase(a[i]);
            else Y.insert(a[i]);
        }
    }
    
    
 
    return mindiff(X,Y);
}

Compilation message (stderr)

potion.cpp: In function 'int mindiff(std::set<int>&, std::set<int>&)':
potion.cpp:4:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   44 |     FOR(i,0,A.size()-1){
      |         ~~~~~~~~~~~~~~           
potion.cpp:44:5: note: in expansion of macro 'FOR'
   44 |     FOR(i,0,A.size()-1){
      |     ^~~

• Subtask 1: 0 / 0
• Subtask 2: 0 / 17
• Subtask 3: 0 / 14
• Subtask 4: 0 / 18
• Subtask 5: 21 / 21
• Subtask 6: 0 / 30