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답안 #168276

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
168276 2019-12-12T07:59:14 Z arnold518 섬 항해 (CEOI13_adriatic) C++14
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#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 25e4;
const int M = 8;

struct Point { int x, y; };

int N, B[M+10][M+10];
Point A[MAXN+10];

int cnt[M+10][M+10];
int p1[M+10][M+10], q1[M+10][M+10];
int p2[M+10][M+10], q2[M+10][M+10];
int x1[M+10][M+10], y1[M+10][M+10];
int x2[M+10][M+10], y2[M+10][M+10];
int dp1[M+10][M+10], dp2[M+10][M+10];

int numpoint(int y1, int y2, int x1, int x2)
{
    if(x1>x2) swap(x1, x2);
    if(y1>y2) swap(y1, y2);
    return cnt[y2][x2]-cnt[y1-1][x2]-cnt[y2][x1-1]+cnt[y1-1][x1-1];
}

int main()
{
    int i, j;

    scanf("%d", &N);
    for(i=1; i<=N; i++) scanf("%d%d", &A[i].y, &A[i].x), B[A[i].y][A[i].x]++;

    for(i=1; i<=M; i++) for(j=1; j<=M; j++) cnt[i][j]=cnt[i-1][j]+cnt[i][j-1]-cnt[i-1][j-1]+B[i][j];

    for(i=1; i<=M; i++)
    {
        q1[M+1][i]=M+1;
        q1[i][0]=M+1;
    }
    q1[M+1][0]=M+1;
    for(i=M; i>=0; i--) for(j=1; j<=M+1; j++)
    {
        p1[i][j]=max(p1[i+1][j], p1[i][j-1]);
        if(B[i][j]) p1[i][j]=j;

        q1[i][j]=min(q1[i+1][j], q1[i][j-1]);
        if(B[i][j]) q1[i][j]=i;
    }

    for(i=1; i<=M; i++)
    {
        p2[0][i]=M+1;
        p2[i][M+1]=M+1;
    }
    p2[0][M+1]=M+1;
    for(i=1; i<=M+1; i++) for(j=M; j>=0; j--)
    {
        p2[i][j]=min(p2[i-1][j], p2[i][j+1]);
        if(B[i][j]) p2[i][j]=j;

        q2[i][j]=max(q2[i-1][j], q2[i][j+1]);
        if(B[i][j]) q2[i][j]=i;
    }

    for(i=0; i<=M+1; i++) for(j=0; j<=M+1; j++)
    {
        x1[i][j]=min(p2[i][1], p2[M][j]);
        y1[i][j]=max(q2[i][1], q2[M][j]);
        x2[i][j]=max(p1[i][M], p1[1][j]);
        y2[i][j]=min(q1[i][M], q1[1][j]);
    }

    for(i=M; i>=1; i--) for(j=1; j<=M; j++)
    {
        dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
    }

    for(i=1; i<=M; i++) for(j=M; j>=1; j--)
    {
        dp2[i][j]=dp2[min(i, y2[i+1][j-1])][max(j, x2[i+1][j-1])]+numpoint(1, i, j, M);
    }

    for(i=1; i<=N; i++) printf("%d\n", N+dp1[A[i].y][A[i].x]+dp2[A[i].y][A[i].x]-3);
/*    printf("================\n");
    for(i=1; i<=M; i++) { for(j=1; j<=M; j++) printf("%d ", dp1[i][j]); printf("\n"); };
    printf("================\n");
    for(i=1; i<=M; i++) { for(j=1; j<=M; j++) printf("%d ", dp2[i][j]); printf("\n"); }; */
}

Compilation message

adriatic.cpp:19:34: error: 'int y1 [18][18]' redeclared as different kind of symbol
 int x1[M+10][M+10], y1[M+10][M+10];
                                  ^
In file included from /usr/include/features.h:367:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:533,
                 from /usr/include/c++/7/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
                 from adriatic.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:251:1: note: previous declaration 'double y1(double)'
 __MATHCALL (y1,, (_Mdouble_));
 ^
adriatic.cpp: In function 'int main()':
adriatic.cpp:72:13: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         y1[i][j]=max(q2[i][1], q2[M][j]);
             ^
adriatic.cpp:72:16: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         y1[i][j]=max(q2[i][1], q2[M][j]);
                ^
adriatic.cpp:72:40: error: assignment of read-only location '*(y1 + (((sizetype)i) + ((sizetype)j)))'
         y1[i][j]=max(q2[i][1], q2[M][j]);
                                        ^
adriatic.cpp:72:40: error: cannot convert 'const int' to 'double(double) throw ()' in assignment
adriatic.cpp:79:36: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                    ^
cc1plus: warning: pointer to a function used in arithmetic [-Wpointer-arith]
adriatic.cpp:79:41: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                         ^
cc1plus: warning: pointer to a function used in arithmetic [-Wpointer-arith]
adriatic.cpp:79:42: error: no matching function for call to 'max(int&, double (&)(double) throw ())'
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                          ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from adriatic.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:219:5: note:   template argument deduction/substitution failed:
adriatic.cpp:79:42: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) throw ()')
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                          ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from adriatic.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:265:5: note:   template argument deduction/substitution failed:
adriatic.cpp:79:42: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) throw ()')
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                          ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from adriatic.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3462:5: note: candidate: template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
adriatic.cpp:79:42: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                          ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from adriatic.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3468:5: note: candidate: template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
adriatic.cpp:79:42: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
         dp1[i][j]=dp1[max(i, y1[i-1][j+1])][min(j, x1[i-1][j+1])]+numpoint(i, M, 1, j);
                                          ^
adriatic.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
adriatic.cpp:35:56: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(i=1; i<=N; i++) scanf("%d%d", &A[i].y, &A[i].x), B[A[i].y][A[i].x]++;
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~