제출 #465679

#제출 시각아이디문제언어결과실행 시간메모리
465679AmirElarbiHandcrafted Gift (IOI20_gift)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "gift.h" #define vi vector<int> #define ve vector #define ll long long #define vf vector<float> #define vll vector<pair<ll,ll>> #define ii pair<int,int> #define vvi vector<vi> #define vii vector<ii> #define gii greater<ii> #define pb push_back #define fi first #define se second #define INF 1e10 #define unsigned u #define eps 1e-18 #define eps1 1e-25 #define optimise ios_base::sync_with_stdio(false);cin.tie(NULL); #define MAX_A 100005 #define V 450 #define re register #define maxi(a,b) ((a) > (b) ? (a) : (b)) ll MOD = 998244353; using namespace std; vi p; int findSet(int x){return (p[x] == x ? x : p[x] = findSet(p[x]));} bool isSameSet(int x, int y){return findSet(x) == findSet(y);} void unionSet(int x, int y){ int i = findSet(x), j = findSet(y); p[min(i,j)] = max(i,j); } int construct(int n, int r, vector<int> a, vector<int> b, vector<int> x) { p.resize(n); set<int> st; string s; for(int i = 0 ; i < n; i++){ p[i] = i; st.insert(i); } for (int i = 0; i < r; ++i) { if(x[i] == 1){ auto lb = st.lower_bound(a[i]), ub = st.lower_bound(b[i]); if(*ub != b[i]) ub--; for (int j = (*lb)+1; j <= *ub; ++j) { if(j == b[i]) st.erase(j); unionSet(j,j-1); } } } for (int i = 0; i < r; ++i) { bool p = false; if(x[i] == 2){ int j = *lb+1; while ( j <= *ub;) { if(!isSameSet(j-1,j)){ p = true; break; } else { j = findSet(j); } } if(!p) return 0; } } char p = 'R'; s += p; for (int i = 1; i < n; ++i) { if(isSameSet(i,i-1)){ s += p; } else { if(p == 'R') p = 'B'; else p = 'R'; s += p; } } craft(s); return 1; }

컴파일 시 표준 에러 (stderr) 메시지

gift.cpp: In function 'int construct(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
gift.cpp:60:22: error: 'lb' was not declared in this scope; did you mean 'b'?
   60 |             int j = *lb+1;
      |                      ^~
      |                      b
gift.cpp:61:27: error: 'ub' was not declared in this scope; did you mean 'b'?
   61 |             while ( j <= *ub;)
      |                           ^~
      |                           b
gift.cpp:61:29: error: expected ')' before ';' token
   61 |             while ( j <= *ub;)
      |                   ~         ^
      |                             )
gift.cpp:61:13: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
   61 |             while ( j <= *ub;)
      |             ^~~~~
gift.cpp:61:30: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
   61 |             while ( j <= *ub;)
      |                              ^
gift.cpp:61:30: error: expected primary-expression before ')' token