제출 #709466

#제출 시각아이디문제언어결과실행 시간메모리
709466TlenekWodoruCatfish Farm (IOI22_fish)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; struct RYBA { int y,c; long long wynik=0; long long l=0,s=0,p=0; long long suma=0; RYBA(int yy=0, int cc=0) { y=yy; c=cc; wynik=0; l=0;s=0,p=0; suma=0; } bool operator <(const RYBA &B)const { return y<B.y; } }; vector<RYBA>V[100009]; long long max_weights(int N, int M, int *X, int *Y, int *W) { for(int i=0;i<M;i++) { V[X[i]+1].push_back(RYBA(Y[i]+1,W[i])); } for(int i=1;i<=N;i++) { V[i].push_back({N+1,0}); V[i].push_back({0,0}); sort(V[i].begin(),V[i].end()); } for(int i=2;i<=N;i++) { int Hl,Hp=0; long long l=0,p=0,s=0; for(int j=0;j<V[i].size();j++) { while(Hl<V[i-1].size()&&V[i-1][Hl].y<=V[i][j].y-1) { l+=V[i-1][Hl].c; Hl++; } while(Hp<V[i+1].size()&&V[i+1][Hp].y<=V[i][j].y-1) { p+=V[i+1][Hp].c; Hp++; } V[i][j].l=l; V[i][j].s=s; V[i][j].p=p; V[i][j].suma=l+s+p; s+=V[i][j].c; } } for(int i=0;i<V[1].size();i++) { V[1][i].wynik=V[1][i].suma; } long long WYNIK=0; for(int i=1;i<=N;i++) { int h; long long maxx; h=0;maxx=0; for(int j=0;j<V[i].size();j++) { if(h<V[i-1].size()&&V[i-1][h].y<=V[i][j].y-1) { maxx=max(maxx,V[i-1][h].wynik-V[i-1][h].s-V[i-1][h].p); h++; } V[i][j].wynik=max(V[i][j].wynik,maxx+V[i][j].suma); } h=V[i-1].size()-1;maxx=0; for(int j=V[i].size()-1;j>=0;j--) { if(h>=0&&V[i][j].y<V[i-1][h].y-1) { maxx=max(maxx,V[i-1][h].wynik); h--; } V[i][j].wynik=max(V[i][j].wynik,maxx+V[i][j].suma-V[i][j].s-V[i][j].l); WYNIK=max(WYNIK,V[i][j].wynik); } } return WYNIK; } /**int main() {ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); int X[4]={0, 1, 4, 3}; int Y[4]={2, 1, 4, 3}; int W[4]={5, 2, 1, 3}; long long w=max_weights(5, 4, X, Y, Y); cout<<w<<endl; return 0; }**/

컴파일 시 표준 에러 (stderr) 메시지

fish.cpp: In function 'long long int max_weights(int, int, int*, int*, int*)':
fish.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for(int j=0;j<V[i].size();j++)
      |                     ~^~~~~~~~~~~~
fish.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |             while(Hl<V[i-1].size()&&V[i-1][Hl].y<=V[i][j].y-1)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:46:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             while(Hp<V[i+1].size()&&V[i+1][Hp].y<=V[i][j].y-1)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(int i=0;i<V[1].size();i++)
      |                 ~^~~~~~~~~~~~
fish.cpp:68:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |         for(int j=0;j<V[i].size();j++)
      |                     ~^~~~~~~~~~~~
fish.cpp:70:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<RYBA>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |             if(h<V[i-1].size()&&V[i-1][h].y<=V[i][j].y-1)
      |                ~^~~~~~~~~~~~~~
fish.cpp:41:19: warning: 'Hl' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |             while(Hl<V[i-1].size()&&V[i-1][Hl].y<=V[i][j].y-1)
      |                   ^~
/usr/bin/ld: /tmp/ccWO4adw.o: in function `main':
grader.cpp:(.text.startup+0x25e): undefined reference to `max_weights(int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status