제출 #785065

#제출 시각아이디문제언어결과실행 시간메모리
785065LyricallyDetecting Molecules (IOI16_molecules)C++17
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; #define pii pair<int,int> #define pb push_back #define rep(i,n) for(int i=0;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) int read(){int x;scanf("%d",&x);return x;} void print(int x){printf("%d\n",x);} void file(string s) { freopen((s+".in").c_str(),"r",stdin); freopen((s+".out").c_str(),"w",stdout); } const int mod=998244353; int find_subset(int l,int r,int w[],int n,int res[]) { vector<pii> v; rep(i,n) { v.pb({w[i],i}); } sort(v.begin(),v.end()); long long tot=0; rep(i,n) { if(tot+v[i].first>r) { if(i==n-1){return 0;} //cout<<i<<" "<<v[0].first<<" "<<v[i].first<<" "<<v.back().first<<endl; long long cur=tot-v[0].first+v[i].first; if(cur>=l&&cur<=r) { for(int j=0;j<i;j++) { res[j]=v[j+1].second+1; } sort(res,res+i); return i; } cur+=v.back().first; if(cur>=l&&cur<=r) { for(int j=0;j<i;j++) { res[j]=v[j+1].second+1; } res[i]=v.back().second+1; sort(res,res+i+1); return i+1; } } else if(tot+v[i].first>=l&&tot+v[i].first<=r) { //6,7,8,8 for(int j=0;j<=i;j++) { res[j]=v[j].second+1; } sort(res,res+i+1); return i+1; } tot+=v[i].first; } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'int read()':
molecules.cpp:7:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 | int read(){int x;scanf("%d",&x);return x;}
      |                  ~~~~~^~~~~~~~~
molecules.cpp: In function 'void file(std::string)':
molecules.cpp:11:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  freopen((s+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
molecules.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  freopen((s+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccshNYU8.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status