제출 #678477

#제출 시각아이디문제언어결과실행 시간메모리
678477hello_there_123선물상자 (IOI15_boxes)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long ll delivery(ll n, ll k, ll l, ll p[]) { ll pre[k+3],pre2[k+3]; memset(pre,0,sizeof(pre)); memset(pre2,0,sizeof(pre2)); deque<ll>left,right; for(ll i=0;i<n;i++){ if(p[i]<=l/2) left.push_front(p[i]); else{ right.push_back(l-p[i]); } } for(ll i=0;i<left.size();i++){ pre[(left.size()-i-1)%k]+=left[i]; } for(ll i=0;i<right.size();i++){ pre2[(right.size()-i-1)%k]+=right[i]; } ll ans = 1e15; for(int i=0;i<(n+k-1)/k;i++){ ll cur = i*l; cur+=2*(pre[(left.size()-1)%k]+pre2[(right.size()-1)%k]); ans = min(ans,cur); for(ll j=0;j<k;j++){ if(left.empty() && right.empty()) break; if(left.empty()){ pre2[(right.size()-1)%k]-=right.front(); right.pop_front(); } else if(right.empty()){ pre[(left.size()-1)%k]-=left.front(); left.pop_front(); } else{ if(left.front()>right.front()){ pre[(left.size()-1)%k]-=left.front(); left.pop_front(); } else{ pre2[(right.size()-1)%k]-=right.front(); right.pop_front(); } } } } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'long long int delivery(long long int, long long int, long long int, long long int*)':
boxes.cpp:16:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::deque<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(ll i=0;i<left.size();i++){
      |             ~^~~~~~~~~~~~
boxes.cpp:19:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::deque<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for(ll i=0;i<right.size();i++){
      |             ~^~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccRjp2Pp.o: in function `main':
grader.c:(.text.startup+0x1ef): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status