oj.uz

답안 #81914

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
81914 2018-10-27T18:21:19 Z duality Sailing Race (CEOI12_race) C++11
90 / 100
 3000 ms 5612 KB 
#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 adjMat[500][500];
int dp[500][500][2],dp2[500][500][2];
int m[500];
int main() {
    int i;
    int N,K,x;
    scanf("%d %d",&N,&K);
    for (i = 0; i < N; i++) {
        while (1) {
            scanf("%d",&x),x--;
            if (x == -1) break;
            else adjMat[i][x] = 1;
        }
    }

    int j,k,l;
    for (i = 2; i <= N; i++) {
        for (j = 0; j < N; j++) {
            k = (j+i-1) % N;
            for (l = (j+1) % N; l != k; l++,l %= N) {
                if (adjMat[j][l]) dp[j][k][0] = max(dp[j][k][0],max(dp[j][l][1],dp[l][k][0])+1);
                if (adjMat[k][l]) dp[j][k][1] = max(dp[j][k][1],max(dp[j][l][1],dp[l][k][0])+1);
            }
        }
    }
    for (i = 2; i <= N; i++) {
        for (j = 0; j < N; j++) {
            k = (j+i-1) % N;
            dp2[j][k][0] = dp2[j][k][1] = -9999;
            if (adjMat[j][k]) dp2[j][k][0] = 1;
            if (adjMat[k][j]) dp2[j][k][1] = 1;
            for (l = (j+1) % N; l != k; l++,l %= N) {
                if (adjMat[j][l]) dp2[j][k][0] = max(dp2[j][k][0],dp2[l][k][0]+1);
                if (adjMat[k][l]) dp2[j][k][1] = max(dp2[j][k][1],dp2[j][l][1]+1);
            }
        }
    }
    if (K == 0) {
        int M = -1,p = -1;
        for (i = 0; i < N; i++) {
            for (j = 0; j < N; j++) {
                if ((i != j) && adjMat[i][j]) {
                    if ((max(dp[i][j][1],dp[j][i][0])+1) > M) M = max(dp[i][j][1],dp[j][i][0])+1,p = i;
                }
            }
        }
        printf("%d\n%d\n",M,p+1);
    }
    else {
        int M = -1,p = -1;
        for (i = 0; i < N; i++) {
            for (j = 0; j < N; j++) {
                if ((i != j) && adjMat[i][j]) {
                    if ((max(dp[i][j][1],dp[j][i][0])+1) > M) M = max(dp[i][j][1],dp[j][i][0])+1,p = i;
                }
            }
        }
        for (i = 0; i < N; i++) {
            fill(m,m+N,-9999);
            for (j = (i+N-2) % N; j != i; j = (j+N-1) % N) {
                for (k = 0; k < N; k++) {
                    if (adjMat[(j+1) % N][k]) m[k] = max(m[k],dp2[(j+1) % N][i][1]+1);
                }
                if (adjMat[j][i]) {
                    for (k = (i+1) % N; k != j; k++,k %= N) {
                        if ((m[k]+max(dp[k][j][0],dp[i][k][1])+1) > M) M = m[k]+max(dp[k][j][0],dp[i][k][1])+1,p = j;
                    }
                }
            }
            fill(m,m+N,-9999);
            for (j = (i+2) % N; j != i; j++,j %= N) {
                for (k = 0; k < N; k++) {
                    if (adjMat[(j+N-1) % N][k]) m[k] = max(m[k],dp2[i][(j+N-1) % N][0]+1);
                }
                if (adjMat[j][i]) {
                    for (k = (i+N-1) % N; k != j; k = (k+N-1) % N) {
                        if ((m[k]+max(dp[k][i][0],dp[j][k][1])+1) > M) M = m[k]+max(dp[k][i][0],dp[j][k][1])+1,p = j;
                    }
                }
            }
        }
        printf("%d\n%d\n",M,p+1);
    }

    return 0;
}

Compilation message

race.cpp: In function 'int main()':
race.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&N,&K);
     ~~~~~^~~~~~~~~~~~~~~
race.cpp:67:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&x),x--;
             ~~~~~~~~~~~~~~^~~~

Subtask #1
90.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 636 KB Output is correct
3 Correct 3 ms 712 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 5 ms 1028 KB Output is correct
6 Correct 10 ms 1076 KB Output is correct
7 Correct 10 ms 1220 KB Output is correct
8 Correct 15 ms 1348 KB Output is correct
9 Correct 19 ms 1476 KB Output is correct
10 Correct 17 ms 1488 KB Output is correct
11 Correct 28 ms 1504 KB Output is correct
12 Correct 198 ms 2560 KB Output is correct
13 Correct 496 ms 3556 KB Output is correct
14 Correct 849 ms 4448 KB Output is correct
15 Correct 2599 ms 5488 KB Output is correct
16 Correct 2841 ms 5488 KB Output is correct
17 Correct 2600 ms 5576 KB Output is correct
18 Correct 1563 ms 5612 KB Output is correct
19 Execution timed out 3040 ms 5612 KB Time limit exceeded
20 Execution timed out 3041 ms 5612 KB Time limit exceeded