Submission #444294

#TimeUsernameProblemLanguageResultExecution timeMemory
444294hhhhauraDungeons Game (IOI21_dungeons)C++17
100 / 100
3579 ms2011480 KiB
#include "dungeons.h" #define wiwihorz #include <bits/stdc++.h> #pragma GCC optimize("Ofast") #pragma loop-opt(on) #define rep(i, a, b) for(int i = a; i <= b; i ++) #define rrep(i, a, b) for(int i = b; i >= a; i--) #define all(x) x.begin(), x.end() #define ceil(a, b) ((a + b - 1) / (b)) #define INF 1000000000000000000 #define MOD 1000000007 #define eps (1e-9) using namespace std; #define ll long long int #define lld long double #define pii pair<int, int> #define random mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count()) #ifdef wiwihorz #define print(a...) cerr << "Line " << __LINE__ << ": ", kout("[" + string(#a) + "] = ", a) void vprint(auto L, auto R) { while(L < R) cerr << *L << " \n"[next(L) == R], ++L;} void kout() {cerr << endl;} template<class T1, class ... T2> void kout(T1 a, T2 ... e) { cerr << a << " ", kout(e...);} #else #define print(...) 0 #define vprint(...) 0 #endif int N, K = 5, sz, lg; ll cur; vector<ll> P; vector<int> S, W; vector<vector<int>> to[20]; vector<vector<ll>> ge[20], lim[20]; void init(int n, vector<int> s, vector<int> p, vector<int> w, vector<int> l) { N = n, sz = 0, lg = 20, cur = 1, S = s, W = w; while(cur < 1e7) sz ++, cur = cur * K; P.assign(sz + 2, 1), P[sz + 1] = INF; rep(i, 1, sz) P[i] = P[i - 1] * K; rep(seg, 0, sz) { int L = P[seg]; to[seg].assign(lg + 1, vector<int>(n + 1, n)); ge[seg].assign(lg + 1, vector<ll>(n + 1, 0ll)); lim[seg].assign(lg + 1, vector<ll>(n + 1, INF)); rep(i, 0, n - 1) { if(s[i] < L) { to[seg][0][i] = w[i]; ge[seg][0][i] = s[i]; lim[seg][0][i] = INF; } else { to[seg][0][i] = l[i]; ge[seg][0][i] = p[i]; lim[seg][0][i] = s[i]; } } rep(i, 1, lg) rep(j, 0, n) { to[seg][i][j] = to[seg][i - 1][to[seg][i - 1][j]]; ge[seg][i][j] = ge[seg][i - 1][j] + ge[seg][i - 1][to[seg][i - 1][j]]; lim[seg][i][j] = min(lim[seg][i - 1][j], lim[seg][i - 1][to[seg][i - 1][j]] - ge[seg][i - 1][j]); } } return; } pair<int, ll> go(int id, int x, ll z) { rrep(i, 0, lg) { if(lim[id][i][x] > z) { z += ge[id][i][x]; x = to[id][i][x]; } } if(x == N) return {x, z}; if(z >= S[x]) z += S[x], x = W[x]; return {x, z}; } ll simulate(int x, int z) { ll cost = z; rep(i, 0, sz) { while(cost < P[i + 1]) { tie(x, cost) = go(i, x, cost); if(x == N) return cost; } } assert(x == N); return cost; }

Compilation message (stderr)

dungeons.cpp:5: warning: ignoring '#pragma loop ' [-Wunknown-pragmas]
    5 | #pragma loop-opt(on)
      | 
dungeons.cpp:25:13: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   25 | void vprint(auto L, auto R) { while(L < R) cerr << *L << " \n"[next(L) == R], ++L;}
      |             ^~~~
dungeons.cpp:25:21: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   25 | void vprint(auto L, auto R) { while(L < R) cerr << *L << " \n"[next(L) == R], ++L;}
      |                     ^~~~
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