oj.uz

Submission #154737

# Submission time Handle Problem Language Result Execution time Memory
154737 2019-09-24T11:10:01 Z arnold518 PIN (CEOI10_pin) C++14
60 / 100
 164 ms 2908 KB 
#include <bits/stdc++.h>
using namespace std;

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

const int MAXN = 5e4;

int N, D;
int A[MAXN+10][5], T[5]={1, 40, 40*40, 40*40*40};
ll ans[5];

int f(char x)
{
    if('0'<=x && x<='9') return x-'0';
    else return x-'a'+10;
}

void solve()
{
    int i, j, k, p, q;
    for(i=0; i<4; i++)
    {
        map<int, int> M;
        for(j=1; j<=N; j++)
        {
            ans[1]+=M[A[j][4]-A[j][i]];
            M[A[j][4]-A[j][i]]++;
        }
    }

    for(i=0; i<4; i++)
    {
        for(j=i+1; j<4; j++)
        {
            map<int, int> M;
            for(k=1; k<=N; k++)
            {
                ans[2]+=M[A[k][4]-A[k][i]-A[k][j]];
                M[A[k][4]-A[k][i]-A[k][j]]++;
            }
        }
    }
    ans[2]-=ans[1]*3;

    for(i=0; i<4; i++)
    {
        map<int, int> M;
        for(j=1; j<=N; j++)
        {
            ans[3]+=M[A[j][i]];
            M[A[j][i]]++;
        }
    }
    ans[3]-=2*ans[2]-3*ans[1];
}

int main()
{
    int i, j;

    scanf("%d%d", &N, &D);
    for(i=1; i<=N; i++)
    {
        char s[5];
        scanf("%s", s);
        A[i][0]=f(s[0])*T[0];
        A[i][1]=f(s[1])*T[1];
        A[i][2]=f(s[2])*T[2];
        A[i][3]=f(s[3])*T[3];
        A[i][4]=A[i][0]+A[i][1]+A[i][2]+A[i][3];
    }
    solve();
    printf("%lld", ans[D]);
}

Compilation message

pin.cpp: In function 'void solve()':
pin.cpp:22:18: warning: unused variable 'p' [-Wunused-variable]
     int i, j, k, p, q;
                  ^
pin.cpp:22:21: warning: unused variable 'q' [-Wunused-variable]
     int i, j, k, p, q;
                     ^
pin.cpp: In function 'int main()':
pin.cpp:61:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
pin.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &D);
     ~~~~~^~~~~~~~~~~~~~~~
pin.cpp:67:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s", s);
         ~~~~~^~~~~~~~~

Subtask #1
60.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Incorrect 4 ms 376 KB Output isn't correct
4 Correct 37 ms 980 KB Output is correct
5 Correct 44 ms 1016 KB Output is correct
6 Correct 44 ms 1016 KB Output is correct
7 Correct 36 ms 888 KB Output is correct
8 Correct 49 ms 1084 KB Output is correct
9 Correct 79 ms 1400 KB Output is correct
10 Correct 84 ms 1400 KB Output is correct
11 Correct 47 ms 1016 KB Output is correct
12 Incorrect 82 ms 1400 KB Output isn't correct
13 Incorrect 54 ms 1016 KB Output isn't correct
14 Incorrect 49 ms 1144 KB Output isn't correct
15 Incorrect 83 ms 1400 KB Output isn't correct
16 Correct 136 ms 2040 KB Output is correct
17 Correct 164 ms 2908 KB Output is correct
18 Incorrect 125 ms 2372 KB Output isn't correct
19 Incorrect 140 ms 2584 KB Output isn't correct
20 Incorrect 159 ms 2800 KB Output isn't correct