제출 #599486

#제출 시각아이디문제언어결과실행 시간메모리
599486definitelynotmee던전 (IOI21_dungeons)C++17
컴파일 에러
0 ms0 KiB
#include "dungeons.h" #include<bits/stdc++.h> using namespace std; #define ff first #define ss second #define all(x) x.begin(), x.end() using ll = long long; using pii = pair<int,int>; using pll = pair<ll,ll>; template<typename T> using matrix= vector<vector<T>>; const int T = 1; struct jmp{ ll to, plus, win; jmp merge(jmp b){ jmp ret; ret.to = b.to; ret.plus = plus+b.plus; ret.win = min(win,b.win-plus); return ret; } }; jmp lift[24][24][50000]; matrix<jmp> lift2; vector<ll> windp; int N; vector<int> S, P, W, L; void init(int n, std::vector<int> s, std::vector<int> p, std::vector<int> w, std::vector<int> l) { N = n; S =s; P = p; W = w; L = l; int t = T; if(n > 5e4){ lift2 = matrix<jmp>(int(log2(T)+1),vector<jmp>(n)); for(int i = 0; i < n; i++){ if(s[i] <= T){ lift2[0][i] = {w[i],s[i],1ll<<60}; if(w[i] == n){ lift2[0][i].win = 0, lift2[0][i].to = i; } } else {lift2[0][i] = {l[i],p[i],s[i]}; if(l[i] == n) lift2[0][i].win = 0, lift2[0][i].to = i; } } for(int i = 1; i < lift2.size(); i++){ for(int j = 0; j < n; j++) lift2[i][j] = lift2[i-1][j].merge(lift2[i-1][lift2[i-1][j].to]); } } else { for(int x = 0; x < 24; x++){ for(int i = 0; i < n; i++){ if(s[i] <= t){ lift[x][0][i] = {w[i],s[i],1ll<<60}; if(w[i] == n){ lift[x][0][i].win = 0, lift[x][0][i].to = i; } } else {lift[x][0][i] = {l[i],p[i],s[i]}; if(l[i] == n) lift[x][0][i].win = 0, lift[x][0][i].to = i; } } for(int i = 1; i < 24; i++){ for(int j = 0; j < n; j++) lift[x][i][j] = lift[x][i-1][j].merge(lift[x][i-1][lift[x][i-1][j].to]); } t*=2; } } windp = vector<ll>(n+1); for(int i = n-1; i >= 0; i--) windp[i] = windp[w[i]]+s[i]; return; } long long simulate(int x, int Z) { ll z = Z; int it = T; while(it-- && x != N){ if(S[x] <= z){ z+=S[x]; x=W[x]; } else { z+=P[x]; x=L[x]; } } if(n > 5e4){ while(x!=N && z < int(1e7)){ for(int i = int(lift2.size())-1; i>= 0; i--){ if(lift2[i][x].win > z){ z+=lift2[i][x].plus; x = lift2[i][x].to; } } if(S[x] <= z){ z+=S[x]; x=W[x]; } else { z+=P[x]; x=L[x]; } } } else { int power = 0; while(x!=N && z < int(1e7)){ while(z >= T*(1<<power+1) && power < 23) power++; for(int i = 23; i>= 0; i--){ if(lift[power][i][x].win > z){ z+=lift[power][i][x].plus; x = lift[power][i][x].to; } } if(S[x] <= z){ z+=S[x]; x=W[x]; } else { z+=P[x]; x=L[x]; } } } return z+windp[x]; }

컴파일 시 표준 에러 (stderr) 메시지

dungeons.cpp: In function 'void init(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
dungeons.cpp:52:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<jmp, std::allocator<jmp> >, std::allocator<std::vector<jmp, std::allocator<jmp> > > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   for(int i = 1; i < lift2.size(); i++){
      |                  ~~^~~~~~~~~~~~~~
dungeons.cpp: In function 'long long int simulate(int, int)':
dungeons.cpp:99:5: error: 'n' was not declared in this scope
   99 |  if(n > 5e4){
      |     ^
dungeons.cpp:118:26: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
  118 |    while(z >= T*(1<<power+1) && power < 23)
      |                     ~~~~~^~