Submission #1172305

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1172305	2025-03-23 10:27:05	crafticat	Railway (BOI17_railway)	C++20	100 / 100	270 ms	52860 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
#define F0R(i, n) for (int i= 0 ; i< n;i++)
#define FOR(i,j,n) for (int i = j; i< n;i++)
template<typename T>
using V = vector<T>;
using vi = V<int>;
using pi = pair<int,int>;
vi buffer;
struct STL
{
    V<map<int, int>> maps;
    vi id;
    STL(int n) {
        maps.resize(n), id.resize(n);
        F0R(i, n)
            id[i] = i;
    }
    void add(int x, int col) {
        maps[id[x]][col]++;
        if (maps[id[x]][col] == buffer[col])
            maps[id[x]].erase(col);
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25