제출 #547386

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
547386		duality	Sightseeing in Kyoto (JOI22_kyoto)	C++17	40 / 100	338 ms	20820 KiB

kyoto

#define DEBUG 0

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

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------

int A[100000],B[100000];
LLI dp[1001][1001];
LLI solve(vi a,vi b) {
    int i,j;
    for (i = 0; i < a.size(); i++) {
        for (j = 0; j < b.size(); j++) {
            if (i == 0) dp[i][j] = (LLI) A[a[0]]*(b[j]-b[0]);
            else if (j == 0) dp[i][j] = (LLI) B[b[0]]*(a[i]-a[0]);
            else dp[i][j] = min(dp[i-1][j]+(LLI) B[b[j]]*(a[i]-a[i-1]),dp[i][j-1]+(LLI) A[a[i]]*(b[j]-b[j-1]));
        }
    }
    return dp[a.size()-1][b.size()-1];
}
int main() {
    int i;
    int H,W;
    scanf("%d %d",&H,&W);
    for (i = 0; i < H; i++) scanf("%d",&A[i]);
    for (i = 0; i < W; i++) scanf("%d",&B[i]);

    LLI ans = 0;
    int x = min_element(A,A+H)-A,y = min_element(B,B+W)-B;
    vi a,b;
    for (i = x; i < H; i++) {
        while (!a.empty() && (A[a.back()] >= A[i]) && (a.back() != x)) a.pop_back();
        a.pb(i);
    }
    for (i = y; i < W; i++) {
        while (!b.empty() && (B[b.back()] >= B[i]) && (b.back() != y)) b.pop_back();
        b.pb(i);
    }
    ans += solve(a,b);
    a.clear(),b.clear();
    for (i = x; i >= 0; i--) {
        while (!a.empty() && (A[a.back()] >= A[i]) && (a.back() != x)) a.pop_back();
        a.pb(i);
    }
    for (i = y; i >= 0; i--) {
        while (!b.empty() && (B[b.back()] >= B[i]) && (b.back() != y)) b.pop_back();
        b.pb(i);
    }
    reverse(a.begin(),a.end());
    reverse(b.begin(),b.end());
    ans += solve(a,b);
    printf("%lld\n",ans);

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

kyoto.cpp: In function 'LLI solve(vi, vi)':
kyoto.cpp:62:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     for (i = 0; i < a.size(); i++) {
      |                 ~~^~~~~~~~~~
kyoto.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |         for (j = 0; j < b.size(); j++) {
      |                     ~~^~~~~~~~~~
kyoto.cpp: In function 'int main()':
kyoto.cpp:74:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |     scanf("%d %d",&H,&W);
      |     ~~~~~^~~~~~~~~~~~~~~
kyoto.cpp:75:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |     for (i = 0; i < H; i++) scanf("%d",&A[i]);
      |                             ~~~~~^~~~~~~~~~~~
kyoto.cpp:76:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |     for (i = 0; i < W; i++) scanf("%d",&B[i]);
      |                             ~~~~~^~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 0 / 60