제출 #369269

#제출 시각아이디문제언어결과실행 시간메모리
369269BertedFeast (NOI19_feast)C++17
컴파일 에러
0 ms0 KiB
#include <iostream> #include <queue> #include <set> #define ll long long #define pii pair<int,int> #define fst first #define snd second #define ppp pair<pair<ll,int>,pii> using namespace std; int n,k,l=-1;ll ar[300001]={},to=0;set<pii> s; priority_queue<ppp> pq; int main() { ios::sync_with_stdio(0);cin.tie(0);cout.tiie(0); cin>>n>>k; for (int i=1;i<=n;i++) { cin>>ar[i]; if (ar[i]>=0) { if (l==-1) {l = i;} } else { if (l!=-1) {to+=ar[i-1] - ar[l-1];s.insert({l,i-1});l=-1;} } ar[i] += ar[i-1]; } if (l!=-1) {s.insert({l,n});to+=ar[n] - ar[l-1];} l = -1; for (auto dt:s) { pq.push({{-(ar[dt.snd] - ar[dt.fst-1]),0},{dt.fst,dt.snd}}); if (l!=-1) { pq.push({{ar[dt.fst-1] - ar[l],1},{l+1,dt.fst-1}}); } l = dt.snd; } while (s.size()>k) { while (pq.size()) { if (pq.top().fst.snd) { auto it = s.lower_bound({pq.top().snd.snd,pq.top().snd.snd}); pii dt = {-1,-1},dt2 = {-1,-1}; if (it!=s.begin()) {dt2 = *prev(it);} if (it!=s.end()) {dt = *it;} if (make_pair(dt2.snd+1,dt.fst-1)!=pq.top().snd) {pq.pop();} else {break;} } else { auto it = s.lower_bound({pq.top().snd.fst,pq.top().snd.snd}); pii dt = {-1,-1}; if (it!=s.end()) {dt = *it;} if (dt!=pq.top().snd) {pq.pop();} else {break;} } } to += pq.top().fst.fst; if (pq.top().fst.snd) { auto it = s.lower_bound(pq.top().snd); int l=prev(it)->fst,r=it->snd; s.erase(prev(it));s.erase(it);pq.pop(); s.insert({l,r}); pq.push({{-(ar[r] - ar[l-1]),0},{l,r}}); } else { auto it = s.lower_bound(pq.top().snd); int l=pq.top().snd.fst,r=pq.top().snd.snd; if (next(it)!=s.end()) {r = next(it)->fst-1;} if (it!=s.begin()) {l = prev(it)->snd+1;} s.erase(pq.top().snd);pq.pop(); pq.push({{ar[r] - ar[l-1],1},{l,r}}); } } cout<<to<<"\n"; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

feast.cpp: In function 'int main()':
feast.cpp:14:42: error: 'std::ostream' {aka 'class std::basic_ostream<char>'} has no member named 'tiie'; did you mean 'tie'?
   14 |  ios::sync_with_stdio(0);cin.tie(0);cout.tiie(0);
      |                                          ^~~~
      |                                          tie
feast.cpp:40:17: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |  while (s.size()>k)
      |         ~~~~~~~~^~