제출 #895851

#제출 시각아이디문제언어결과실행 시간메모리
895851vjudge1쌀 창고 (IOI11_ricehub)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define f first #define s second int n, budget; vector<int> psum; vector<int> ssum; bool check(int rice) { int middle = (rice-1) / 2; int right = middle+(rice)/2; int minb = 1e9; for (int i = 0; i <= n - rice; i++) { int b = psum[i+right] - psum[i+middle] + ssum[i] - ssum[i+middle]; minb = min(b, minb); } //cout << "minb: " << minb << endl; if (minb <= budget) return true; return false; } int besthub(int r, ll maxcoor, int a[], int b) { n = r; budget = b; int diff[n-1]; for (int i = 0; i < n-1; i++) { diff[i] = a[i+1] - a[i]; } psum.resize(n, 0); ssum.resize(n, 0); for (int i = 1; i < n; i++) { psum[i] = a[i-1] + psum[i-1]; } for (int i = n-2; i >= 0; i--) { ssum[i] = a[i] + ssum[i+1]; } int l = 1; while (l < r) { int mid = (l + r + 1) / 2; //cout << "mid: " << mid << endl; if (check(mid)) { l = mid; } else { r = mid - 1; } } return l; } // signed main() { // int r, l, b; cin >> r >> l >> b; // int x[r]; // for (int i = 0; i < r; i++) cin >> x[i]; // besthub(r, l, x, b); // }

컴파일 시 표준 에러 (stderr) 메시지

ricehub.cpp: In function 'int besthub(int, ll, int*, int)':
ricehub.cpp:29:9: warning: variable 'diff' set but not used [-Wunused-but-set-variable]
   29 |     int diff[n-1];
      |         ^~~~
/usr/bin/ld: /tmp/ccERiE9A.o: in function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status