#966641 (C++14) No.2712 Play more!

• 問題: No.2712 Play more!
• ユーザー: kotatsugame
• 提出日時: 2024-03-31 13:53:26
• 言語: C++14 (gcc 12.3.0 + boost 1.83.0)
• 結果: WA
• 実行時間: -
• コード長: 715 bytes
• コンパイル時間: 501 ms
• コンパイル使用メモリ: 65,212 KB
• 実行使用メモリ: 6,676 KB
• 最終ジャッジ日時: 2024-03-31 13:53:34
• 合計ジャッジ時間: 1,773 ms
• ジャッジサーバーID （参考情報）: judge11 / judge15

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 6,548 KB
testcase_01	AC	2 ms; 6,548 KB
testcase_02	AC	2 ms; 6,548 KB
testcase_03	AC	2 ms; 6,548 KB
testcase_04	AC	2 ms; 6,548 KB
testcase_05	WA	-
testcase_06	WA	-
testcase_07	WA	-
testcase_08	WA	-
testcase_09	AC	26 ms; 6,548 KB
testcase_10	AC	2 ms; 6,548 KB
testcase_11	AC	10 ms; 6,548 KB
testcase_12	AC	18 ms; 6,548 KB
testcase_13	AC	9 ms; 6,548 KB
testcase_14	AC	14 ms; 6,548 KB
testcase_15	AC	37 ms; 6,548 KB
testcase_16	AC	6 ms; 6,548 KB
testcase_17	AC	3 ms; 6,548 KB
testcase_18	AC	5 ms; 6,548 KB
testcase_19	AC	4 ms; 6,548 KB
testcase_20	AC	12 ms; 6,548 KB
testcase_21	AC	8 ms; 6,548 KB
testcase_22	AC	20 ms; 6,548 KB
testcase_23	AC	5 ms; 6,548 KB
testcase_24	AC	7 ms; 6,548 KB
testcase_25	AC	3 ms; 6,548 KB
testcase_26	AC	6 ms; 6,548 KB
testcase_27	AC	8 ms; 6,548 KB
testcase_28	AC	8 ms; 6,548 KB
testcase_29	AC	7 ms; 6,548 KB
testcase_30	AC	19 ms; 6,548 KB
testcase_31	AC	45 ms; 6,548 KB
testcase_32	AC	43 ms; 6,548 KB
testcase_33	AC	2 ms; 6,548 KB

コンパイルメッセージ

In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/iostream:39,
                 from main.cpp:1:
In member function 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>]',
    inlined from 'int main()' at main.cpp:44:12:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:167:25: warning: 'pr' may be used uninitialized [-Wmaybe-uninitialized]
  167 |       { return _M_insert(__n); }
      |                ~~~~~~~~~^~~~~
main.cpp: In function 'int main()':
main.cpp:24:14: note: 'pr' was declared here
   24 |         long pr;
      |              ^~

ソースコード

#include<iostream>
#include<cassert>
using namespace std;
int N,M;
int A[2525];
int a[5000],b[5000],c[5000];
long dist[2525];
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cin>>N>>M;
	for(int i=0;i<N;i++)
	{
		cin>>A[i];
		dist[i]=-1e18;
	}
	for(int i=0;i<M;i++)
	{
		cin>>a[i]>>b[i]>>c[i];
		a[i]--,b[i]--;
	}
	dist[0]=A[0];
	long pr;
	const int T=N;
	for(int t=1;t<=2*T;t++)
	{
		for(int i=0;i<M;i++)if(dist[a[i]]>(long)-1e18)
		{
			dist[b[i]]=max(dist[b[i]],dist[a[i]]-c[i]+A[b[i]]);
		}
		if(t%T==0)
		{
			if(t==T)pr=dist[N-1];
			else
			{
				if(pr<dist[N-1])
				{
					cout<<"inf\n";
				}
				else
				{
					assert(pr==dist[N-1]);
					cout<<pr<<"\n";
				}
				return 0;
			}
		}
	}
}