제출 #759830

#제출 시각아이디문제언어결과실행 시간메모리
759830Doncho_BonbonchoKnapsack (NOI18_knapsack)C++14
73 / 100
1080 ms1492 KiB
#include <bits/stdc++.h> using namespace std; #pragma GCC optimize ("O3") #pragma GCC target ("sse4") #define endl "\n" template<class T, class T2> inline bool chkmax(T &x, const T2 &y) { return x < y ? x = y, 1 : 0; } template<class T, class T2> inline bool chkmin(T &x, const T2 &y) { return x > y ? x = y, 1 : 0; } #ifndef LOCAL #define cerr if(false) cerr #define endl "\n" #endif template<typename T, typename S> ostream& operator << (ostream &os, const pair<T, S> &p) { return os << "(" << p.first << ", " << p.second << ")"; } template<typename T, typename B = decay<decltype(*begin(declval<T>()))>, typename enable_if<!is_same<T, string>::value>::type* = nullptr> ostream& operator <<(ostream &os, const T &c) { bool f = false; os << "("; for(const auto &x : c) { if(f) os << ", "; f = true; os << x; } return os << ")"; } #define out(x) #x << "=" << x << " " struct debug { debug(const string &msg) { cerr << "LINE " << msg << ": "; } ~debug() { cerr << endl; } template<class T> debug& operator <<(const T x) { cerr << x; return *this; } }; #define dbg debug(to_string(__LINE__)) typedef long long ll; const ll mod = 1e9 + 7; //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// ll dpNow[2001]; ll dpPrev[2001]; int v[100001]; int val[100001]; int num[100001]; signed main() { #ifndef LOCAL ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); #endif int n, s; std::cin>>s>>n; for( int i=1 ; i<=n ; i++ ){ std::cin>>val[i]>>v[i]>>num[i]; } for( int i=1 ; i<=n ; i++ ){ for( int j=0 ; j<=s ; j++ ){ chkmax( dpNow[j], dpPrev[j] ); if( j ) chkmax( dpNow[j], dpNow[j-1] ); for( int k=1 ; k<=num[i] ; k++ ){ cerr<<" ! "<<k<<" "<<v[i]*k<<endl; if( j- v[i]*k < 0 ) break; chkmax( dpNow[j], dpPrev[j-k*v[i]] + k*val[i] ); } cerr<<i<<" "<<j<<" "<<" -> "<<dpNow[j]<<endl; } for( int j=0 ; j<=s ; j++ ){ dpPrev[j] = dpNow[j]; } } std::cout<<dpPrev[s]<<endl; return 0; } // To the OGs, I'm thankin' you now // Was watchin' you when you was pavin' the ground // I copied your cadence, I mirrored your style // I studied the greats, I'm the greatest right now

컴파일 시 표준 에러 (stderr) 메시지

knapsack.cpp: In function 'std::ostream& operator<<(std::ostream&, const T&)':
knapsack.cpp:24:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   24 |         if(f) os << ", "; f = true;
      |         ^~
knapsack.cpp:24:27: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   24 |         if(f) os << ", "; f = true;
      |                           ^
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