제출 #942704

#제출 시각아이디문제언어결과실행 시간메모리
942704vjudge1Nicelines (RMI20_nicelines)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; const int maxN = 4e5 + 5; long long query[maxN]; long long get_l(const long long &num) { return num & ((1LL << 19) - 1LL); } long long get_r(const long long &num) { return (num >> 19) & ((1LL << 19) - 1LL); } long long get_idx(const long long &num) { return (num >> 38) & ((1LL << 19) - 1LL); } bool cmp_query(const long long &a, const long long &b) { return get_l(a) > get_l(b); } map<long long, int> helper; map<long long, int>::iterator m_iter; stack<int> S; int lq[maxN], val[maxN]; int last_l; int calc(const int &l, const int &r) { // //cout << "Start " << l << ' ' << r << '\n'; // if(r < l)return 0; // if(val[r])last_l = lq[r]; // val[r] = val[r] + calc(l, lq[r] - 1); // lq[r] = (val[r] ? last_l : l); // //cout << " Calc " << l << ' ' << r << ' ' << val[r] << '\n'; int tr = r; while(l <= tr) { if(val[tr])last_l = lq[tr]; S.push(tr); tr = lq[tr] - 1; } int pr = l - 1; while(!S.empty()) { val[S.top()] += val[pr]; //cout << "Calc " << l << ' ' << S.back() << ' ' << val[S.back()] << '\n'; lq[S.top()] = (val[S.top()] ? last_l : l); pr = S.top(); S.pop(); } return val[r]; } int re[maxN]; int res[maxN]; int n, q; int main() { if(fopen("input.txt", "r")) { freopen("input.txt", "r", stdin); } ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n; val[0] = 0; for(int i = 1; i <= n; ++i) { cin >> re[i]; lq[i] = i; val[i] = 0; } cin >> q; long long l, r, idx; for(int i = 1; i <= q; ++i) { cin >> l >> r; idx = i; query[i] = l | (r << 19) | (idx << 38); } sort(query + 1, query + q + 1, cmp_query); helper.clear(); helper.insert(make_pair(0LL, n + 1)); long long sum = 0; for(int i = n; i > 0; --i) { sum += re[i]; re[i] = -1; m_iter = helper.find(sum); if(m_iter == helper.end()) { helper.insert(make_pair(sum, i)); } else { re[i] = m_iter->second - 1; m_iter->second = i; } } int itl = n; for(int i = 1; i <= q; ++i) { while(itl >= get_l(query[i])) { if(re[itl] != -1) { calc(itl, re[itl]); if(!val[re[itl]]) { val[re[itl]] = 1; lq[re[itl]] = itl; for(int j = re[itl] + 1; j <= n; ++j) if(val[j])break; else lq[j] = re[itl] + 1; } } itl--; } res[get_idx(query[i])] = calc(get_l(query[i]), get_r(query[i])); } for(int i = 1; i <= q; ++i) cout << res[i] << '\n'; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

nicelines.cpp: In function 'int main()':
nicelines.cpp:66:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |         freopen("input.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/cctdvSBI.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccKXFKXF.o:nicelines.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cctdvSBI.o: in function `main':
grader.cpp:(.text.startup+0x68): undefined reference to `solve(int, int)'
collect2: error: ld returned 1 exit status