/* _____ _ ____ _ |_ _| |__ ___/ ___| ___ _ __ | |_ _ __ ___ | | | '_ \ / _ \___ \ / _ \ '_ \| __| '__/ _ \ | | | | | | __/___) | __/ | | | |_| | | (_) | |_| |_| |_|\___|____/ \___|_| |_|\__|_| \___/ */ #include <bits/stdc++.h> #pragma GCC optimize("O3") using namespace std; #define ll long long ll mod = 1e9+7; //mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); ll binpow(ll a, ll b) { ll res = 1; while (b>0) { if (b&1) res = (res*a)%mod; a = (a*a)%mod; b>>=1; } return res; } ll gcd(ll x, ll y) { if (y==0) return x; return gcd(y, x%y); } void solve() { ll n,c; cin>>n>>c; vector<ll>v(n+1), h(n+1); for (int i=1 ; i<=n ; i++) {cin>>v[i]; cin>>h[i];} vector<pair<ll,ll>>vp; for (int i=1 ; i<=n ; i++) { vp.push_back({v[i], i}); } sort(vp.begin(), vp.end()); vector<ll>ans; for (auto i:vp) { if (c>=i.first) { c-=i.first; ans.push_back(i.second); } } cout<<ans.size()<<endl; for (auto i:ans) cout<<i<<" "; cout<<endl; } int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); ll tt = 1; // cin>>tt; while (tt--) { solve(); } return 0; }

/usr/bin/ld: /tmp/ccg45ywL.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cczuRk8p.o:festival.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccg45ywL.o: in function `main':
grader.cpp:(.text.startup+0x22a): undefined reference to `max_coupons(int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status