제출 #114493

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
114493		Dung	Two Dishes (JOI19_dishes)	C++11	0 / 100	596 ms	25580 KiB

dishes

#include <bits/stdc++.h>
#include <iostream>
using namespace std;

unsigned int N,M;

vector<unsigned long> A;
vector<unsigned long> B;
vector<unsigned long long> S;
vector<unsigned long long> T;
vector<long> P;
vector<long> Q;
vector<unsigned long> suma, sumb;
unsigned long sum = 0;
long ans = 0;
unsigned long long curtime = 0;






long dp(const unsigned int & posa,const unsigned int & posb,const short int & state){
   if(state == 1){
   	if(posa < N){
   	  if(posb >= 0){
   	    curtime = suma[posa] + sumb[posb];
   	  }
   	  else{
   	    curtime = suma[posa];
   	  }
   	  if(curtime < S[posa]){
   	    ans += P[posa]; 
   	  }
       unsigned int tema = posa + 1;
       unsigned int temb = posb + 1;
       return max(dp(tema, posb,1),dp(posa,temb,-1));
   	  
   	}
   	else{
   	  long long ans1= ans;
       ans -= P[posa - 1];
   	  return ans1;
   	}
   }
   else if(state == -1){
     if(posb < M){
   	  if(posa >= 0){
   	    curtime = suma[posa] + sumb[posb];
   	  }
   	  else{
   	    curtime = sumb[posb];
   	  }
   	  if(curtime < S[posb]){
   	    ans += Q[posb]; 
   	  }
   	  unsigned int tema = posa + 1;
       unsigned int temb = posb + 1;
       return max(dp(tema, posb,1),dp(posa,temb,-1));
   	}
   	else{
       long long ans1= ans;
       ans -= Q[posb - 1];
   	  return ans1;
   	}
   }
 }


int main(){
  cin >> N >> M;
  A.resize(N);
  S.resize(N);
  P.resize(N);
  suma.resize(N);
  B.resize(M); T.resize(M); Q.resize(M); sumb.resize(M);
  for(int i = 0;i< N;i++){
    cin >> A[i] >> S[i] >> P[i];
    sum += A[i];
    suma[i] = sum;
  }
  sum = 0;
  for(int i = 0;i< M;i++){
    cin >> B[i] >> T[i] >> Q[i];
    sum += B[i];
    sumb[i] = sum;
  }
  cout << max(dp(0,-1,1),dp(-1,0,-1));
  
}

컴파일 시 표준 에러 (stderr) 메시지

dishes.cpp: In function 'int main()':
dishes.cpp:77:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0;i< N;i++){
                 ~^~~
dishes.cpp:83:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0;i< M;i++){
                 ~^~~
dishes.cpp: In function 'long int dp(const unsigned int&, const unsigned int&, const short int&)':
dishes.cpp:67:2: warning: control reaches end of non-void function [-Wreturn-type]
  }
  ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 3
• Subtask 3: 0 / 7
• Subtask 4: 0 / 39
• Subtask 5: 0 / 11
• Subtask 6: 0 / 9
• Subtask 7: 0 / 17
• Subtask 8: 0 / 9