제출 #490484

#제출 시각아이디문제언어결과실행 시간메모리
490484MohamedAliSaidaneHandcrafted Gift (IOI20_gift)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "gift.h" using namespace std; typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef pair<ld,ld> pld; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pii> vpi; typedef vector<pll> vpl; typedef vector<pld> vpd; #define pb push_back #define popb pop_back #define all(v) (v).begin(),(v).end() #define ff first #define ss second const ll MOD = 1e9 + 7; const ll INF = 1e18; int nx[4] = {1,-1,0,0}, ny[4] = {0,0,1,-1}; /////// SOLUTION \\\\\\\ int n, r; vi a, b, x; vi p, rnk; /*void craft(string s) { cout << s << '\n'; }*/ int construct(int n, int r, vi a, vi b, vi x) { vpi same; vpi diff; map<int,int> s; map<int,int> d; string res = ""; for(int i= 0; i <n; i ++) { s[i]= i; res += 'R'; } for(int i= 0; i <r; i ++) { if(x[i] == 1) { same.pb({a[i],b[i]}); s[a[i]] = max(s[a[i]],b[i]); } else { diff.pb({a[i],b[i]}); } } char c= 'R'; int r = 0; for(int i = 0; i < n; i ++) { r = s[i]; for(int u = i; u <= r; u ++) { r = max(r,s[u]); res[u] = c; } c = c == 'R'? 'B': 'R'; //cout <<i << ' '<< r; i = r ; } int pref[n+1]; pref[0] = 1; for(int i = 1; i <n; i ++) { pref[i] = pref[i-1] + (res[i] != res[i-1]); } for(auto e: diff) { if(pref[e.ss] - pref[e.ff] < 1) return 0; } craft(res); return 1; }/* int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int N, R; cin >> N >> R; vi A, B, X; for(int i = 0; i <R;i ++) { int ai, bi, xi; cin >> ai >> bi >> xi; A.pb(ai); B.pb(bi); X.pb(xi); } cout << construct(N,R,A,B,X); }*/

컴파일 시 표준 에러 (stderr) 메시지

gift.cpp:27:1: warning: multi-line comment [-Wcomment]
   27 | /////// SOLUTION \\\\\\\
      | ^
gift.cpp: In function 'int construct(int, int, vi, vi, vi)':
gift.cpp:62:9: error: declaration of 'int r' shadows a parameter
   62 |     int r = 0;
      |         ^
gift.cpp:36:26: note: 'int r' previously declared here
   36 | int construct(int n, int r, vi a, vi b, vi x)
      |                      ~~~~^