Submission #75055

#TimeUsernameProblemLanguageResultExecution timeMemory
75055KieranHorganMechanical Doll (IOI18_doll)C++17
2 / 100
114 ms18120 KiB
#include "doll.h" #include <bits/stdc++.h> using namespace std; pair<int, int> exits[400005]; vector<int> C, X, Y; vector<int> afterInList[400005]; int nextSwitchIdx = -1; int build(int i, vector<int> cur) { if(cur.size() == 1) { return cur[0]; } if(i >= 0) { return build(nextSwitchIdx--, cur); } if(X.size() < abs(i)) { X.resize(abs(i)); Y.resize(abs(i)); } vector<int> nextCur; for(int j = 0; j < cur.size(); j+=2) nextCur.push_back(cur[j]); X[-(i+1)] = build(nextSwitchIdx--, nextCur); nextCur.clear(); for(int j = 1; j < cur.size(); j+=2) nextCur.push_back(cur[j]); Y[-(i+1)] = build(nextSwitchIdx--, nextCur); return i; } void create_circuit(int M, vector<int> A) { int N = A.size(); C.assign(M+1, 0); afterInList[0].push_back(A[0]); for(int i = 0; i+1 < N; i++) afterInList[A[i]].push_back(A[i+1]); afterInList[A.back()].push_back(0); for(int i = 0; i <= M; i++) { if(afterInList[i].empty()) continue; C[i] = build(i, afterInList[i]); } answer(C, X, Y); }

Compilation message (stderr)

doll.cpp: In function 'int build(int, std::vector<int>)':
doll.cpp:26:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |   for(int j = 0; j < cur.size(); j+=2)
      |                  ~~^~~~~~~~~~~~
doll.cpp:31:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for(int j = 1; j < cur.size(); j+=2)
      |                  ~~^~~~~~~~~~~~
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