제출 #983745

#제출 시각아이디문제언어결과실행 시간메모리
983745wood늑대인간 (IOI18_werewolf)C++17
0 / 100
107 ms30016 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int,int> p32; typedef pair<ll,ll> p64; #define pb push_back #define eb emplace_back #define fi first #define se second #define vi vector<int> #define vp32 vector<p32> #define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL) #define MOD %1000000007 #include <ext/pb_ds/assoc_container.hpp> using namespace __gnu_pbds; template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; //never guess //never debug without reviewing code //never try adding ones or substracting them //only step by step debug when necessay //the only time I thought this could be solved wihtout segment trees segment tree was the answer fml constexpr int N = 1e2; //change // struct segtree // { // int mx[N] = {0}, mn[N], size = 1; // segtree(int n){while(size<=n)size*=2; fill(mn,mn+N,INT_MAX);} // void upd(int i, int u){ // upd(i,u,0,0,size); // } // void upd(int i, int u, int x, int l, int r){ // if(r-l==1){ // mx[x] = u; // mn[x] = u; // return; // } // int m = (r+l)/2; // if(i<m) upd(i,u,2*x+1,l,m); // else upd(i,u,2*x+2,m,r); // mx[x] = max(mx[2*x+1],mx[2*x+2]); // mn[x] = min(mn[2*x+1],mn[2*x+2]); // } // int get(int l, int r, bool MX){ // return get(l,r,0,0,size,MX); // } // int get(int l, int r, int x, int lx, int rx, bool MX){ // int* arr = (MX) ? mx : mn; // if(lx>=r||rx<=l) return (MX) ? 0 : INT_MAX; // else if(lx>=l&&rx<=r) return arr[x]; // int m = (rx+lx)/2; // int p = get(l,r,2*x+1,lx,m,MX); // int q = get(l,r,2*x+2,m,rx,MX); // if(MX) return max(p,q); // else return min(p,q); // } // }; vector<int> check_validity(int N, vector<int> X, vector<int> Y, vector<int> S, vector<int> E, vector<int> L, vector<int> R){ int n = N,m = X.size(),q = S.size(); vi adj[n]; for (size_t i = 0; i < m; i++) { adj[X[i]-1].pb(Y[i]-1); adj[Y[i]-1].pb(X[i]-1); } // vi arr; // for (size_t i = 0; i < N; i++) // { // if(adj[i].size()==1){ // int e = -1,x = i ; // while(arr.size()<N){ // arr.pb(x); // for(int p : adj[x]){ // if(p!=e){ // e = x; // x = p; // break; // } // } // } // break; // } // } // segtree sg(n); // int ind[n]; // for (size_t i = 0; i < n; i++) // { // sg.upd(i,arr[i]); // ind[arr[i]] = i; // } vi res; // for (size_t i = 0; i < q; i++) // { // int from_start; // if(S[i]>R[i]||E[i]<L[i]){ // res.pb(0); // continue; // } // int s = ind[S[i]-1], e = ind[E[i]-1]; // //binary search segtree to get the range from start // //and find the furthest index whose min is smaller than R // if(s>e){ // int r = s, l = e; // while(r-l>1){ // int mid = (r+l)/2; // if(sg.get(mid,s+1,true)<R[i]) r = mid; // else l = mid; // } // if(arr[r]<L[i]-1||sg.get(e,l,false)<L[i]-1) // res.pb(0); // else res.pb(1); // } // else{ // int l = s, r = e; // while(r-l>1){ // int mid = (r+l)/2; // if(sg.get(s,mid+1,true)<R[i]) l = mid; // else r = mid; // } // if(arr[l]<L[i]-1||sg.get(r,e+1,false)<L[i]-1) // res.pb(0); // else res.pb(1); // } // } return res; } // int main() // { // fast_cin(); // #ifndef ONLINE_JUDGE // #ifdef _WIN32 // freopen("input.in", "r", stdin); // freopen("input.out", "w", stdout); // #endif // #endif // for(int i : check_validity(5,{2,1,4,5},{1,4,5,3},{2},{3},{1},{1})) cout<<i<<' '; // return 0; // }

컴파일 시 표준 에러 (stderr) 메시지

werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:65:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   65 |     for (size_t i = 0; i < m; i++)
      |                        ~~^~~
werewolf.cpp:63:28: warning: unused variable 'q' [-Wunused-variable]
   63 |     int n = N,m = X.size(),q = S.size();
      |                            ^
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