Submission #1253054

#TimeUsernameProblemLanguageResultExecution timeMemory
1253054SoMotThanhXuanSouvenirs (IOI25_souvenirs)C++20
39 / 100
13 ms412 KiB
#include "souvenirs.h" #include <bits/stdc++.h> using namespace std; #define F first #define S second #define FOR(i, a, b) for(int i = (a), _b = (b); i <= _b; ++i) #define REP(i, a, b) for(int i = (a), _b = (b); i >= _b; --i) #define mp make_pair #define all(v) v.begin(), v.end() #define uni(v) v.erase(unique(all(v)), v.end()) #define Bit(x, i) ((x >> (i)) & 1) #define Mask(i) (1 << (i)) #define Cnt(x) __builtin_popcount(x) #define Cntll(x) __builtin_popcountll(x) #define Ctz(x) __builtin_ctz(x) // so luong so 0 tinh tu ben phai #define Ctzll(x) __builtin_ctzll(x) #define Clz(x) __builtin_clz(x) // so luong so 0 tinh tu ben trai #define Clzll(x) __builtin_clzll(x) inline bool maximize(int &u, int v){ return v > u ? u = v, true : false; } inline bool minimize(int &u, int v){ return v < u ? u = v, true : false; } inline bool maximizell(long long &u, long long v){ return v > u ? u = v, true : false; } inline bool minimizell(long long &u, long long v){ return v < u ? u = v, true : false; } const int mod = 1e9 + 7; inline int fastPow(int a, int n){ if(n == 0) return 1; int t = fastPow(a, n >> 1); t = 1ll * t * t % mod; if(n & 1) t = 1ll * t * a % mod; return t; } inline void add(int &u, int v){ u += v; if(u >= mod) u -= mod; } inline void sub(int &u, int v){ u -= v; if(u < 0) u += mod; } const int maxN = 1e2 + 5; const int inf = 1e9; const long long infll = 1e18; //long long P[maxN]; //int N; //pair<vector<int>, long long> transaction(long long M){ // vector<int> res; // FOR(i, 0, N - 1){ // if(M >= P[i]){ // res.emplace_back(i); // M -= P[i]; // } // } // assert(!res.empty()); // return mp(res, M); //} int Q[maxN]; long long P[maxN]; using T = pair<vector<int>, long long>; void buy_souvenirs(int N, long long P0) { if(N == 2){ T val = transaction(P0 - 1); return; } if(N == 3){ T val = transaction(P0 - 1); if(val.first.size() == 1){ P[1] = P0 - 1 - val.second; FOR(i, 1, 2)T val = transaction(P[1] - 1); return; } // val.size() == 2 val = transaction((P0 - 1 - val.second) / 2); return; } long long Rem = P0 - 1; FOR(i, 1, N - 1){ while(Q[i] < i){ pair<vector<int>, long long> val = transaction(Rem); for(int x : val.first)Q[x]++; if(val.first.size() == 1){ Rem -= val.second; }else{ --Rem; } } --Rem; } return; } //void process(){ // cin >> N; // FOR(i, 0, N - 1) cin >> P[i]; // buy_souvenirs(N, P[0]); //} //#define LOVE "" //int main(){ // if(fopen(LOVE".inp", "r")){ // freopen(LOVE".inp", "r", stdin); // freopen(LOVE".out", "w", stdout); // } // ios_base::sync_with_stdio(false); // cin.tie(0); // cout.tie(0); // // int t = 1; //// cin >> t; // while(t--) // process(); //// cerr << '\n' << "Time elapsed: " << (1.0 * clock() / CLOCKS_PER_SEC) << " s\n" ; // return 0; //}
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