제출 #239719

#제출 시각아이디문제언어결과실행 시간메모리
239719rajarshi_basu구경하기 (JOI13_watching)C++14
컴파일 에러
0 ms0 KiB
//#pragma GCC optimize("Ofast") //#pragma GCC target("avx,avx2,fma") #include <stdio.h> #include <stdlib.h> #include <iostream> #include <vector> #include <algorithm> #include <fstream> #include <queue> #include <deque> #include <iomanip> #include <cmath> #include <set> #include <stack> #include <map> #include <unordered_map> #define FOR(i,n) for(int i=0;i<n;i++) #define FORE(i,a,b) for(int i=a;i<=b;i++) #define ll long long #define ld long double #define vi vector<int> #define pb push_back #define ff first #define ss second #define il pair<int,ll> #define ii pair<int,int> #define lii pair<pair<ll,int>,il> #define iii pair<int,ii> #define iiii pair<iii,int> #define pll pair<ll,ll> #define plll pair<ll,pll> #define vv vector #define endl '\n' using namespace std; const int MAXN = 2e3+5; const int INF = 1e8; int arr[MAXN]; int n,p,q; int dp[MAXN][MAXN] bool check(int w){ FOR(i,q)FOR(j,n)dp[i][j] = INF; FOR(i,q+1){ int ptr1 = 0; int ptr2 = 0; FOR(j,n){ while(arr[ptr1]+w-1 < arr[j])ptr1++; int prevInd = ptr1-1; if(prevInd == -1){ dp[i][j] = 1; }else{ dp[i][j] = dp[i][prevInd] + 1; } // using a q here if(i > 0){ while(arr[ptr2]+w*2-1<arr[j])ptr2++; prevInd = ptr2-1; if(prevInd == -1){ dp[i][j] = 0; }else{ dp[i][j] = min(dp[i][j],dp[i-1][prevInd]); } } } } return dp[q][n-1] <= p; } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cin >> n >> p >> q; p = min(n,p); q = min(n,q); FOR(i,n)cin >> arr[i]; sort(arr,arr+n); int lo = 1; int hi = 1e9; //cout << check(4) << endl; int ans = 1e9; while(lo <= hi){ int mid = (lo+hi)/2; if(check(mid)){ ans = min(ans,mid); hi = mid-1; }else{ lo = mid+1; } } cout << ans << endl; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

watching.cpp:46:1: error: expected initializer before 'bool'
 bool check(int w){
 ^~~~
watching.cpp: In function 'int main()':
watching.cpp:94:12: error: 'check' was not declared in this scope
         if(check(mid)){
            ^~~~~
watching.cpp:94:12: note: suggested alternative: 'clock'
         if(check(mid)){
            ^~~~~
            clock