제출 #502461

#제출 시각아이디문제언어결과실행 시간메모리
502461wwddCloud Computing (CEOI18_clo)C++14
100 / 100
328 ms2180 KiB
// bruh this time complexity is so bad #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef vector<ll> vl; const ll INFL = 1e18; struct OP { ll op,kt,val,so; OP(ll op_, ll kt_, ll val_, ll so_): op(op_), kt(kt_), val(val_), so(so_) { } bool operator<(const OP& ot) const { if(so != ot.so) {return so > ot.so;} return op > ot.op; }; }; int main() { ios::sync_with_stdio(0);cin.tie(0); vector<OP> ops; ll n; cin >> n; for(int i=0;i<n;i++) { ll kt,so,val; cin >> kt >> so >> val; ops.emplace_back(1,kt,val,so); } ll m; cin >> m; for(int i=0;i<m;i++) { ll kt,so,val; cin >> kt >> so >> val; ops.emplace_back(-1,kt,val,so); } sort(ops.begin(),ops.end()); vector<ll> dp; dp.push_back(0); for(const auto& op: ops) { if(op.op == 1) { dp.resize(dp.size()+op.kt,-INFL); for(int i=dp.size()-1;i>=op.kt;i--) { dp[i] = max(dp[i],dp[i-op.kt]-op.val); } } else { for(int i=0;i+op.kt<dp.size();i++) { dp[i] = max(dp[i],dp[i+op.kt]+op.val); } } } ll ans = 0; for(int i=0;i<dp.size();i++) { ans = max(ans,dp[i]); } cout << ans << '\n'; }

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'int main()':
clo.cpp:44:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |    for(int i=0;i+op.kt<dp.size();i++) {
      |                ~~~~~~~^~~~~~~~~~
clo.cpp:50:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |  for(int i=0;i<dp.size();i++) {
      |              ~^~~~~~~~~~
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