oj.uz

Submission #154736

# Submission time Handle Problem Language Result Execution time Memory
154736 2019-09-24T11:06:22 Z arnold518 PIN (CEOI10_pin) C++14
60 / 100
 161 ms 3164 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[k][i]];
            M[A[k][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 6 ms 504 KB Output is correct
2 Correct 5 ms 380 KB Output is correct
3 Incorrect 4 ms 376 KB Output isn't correct
4 Correct 34 ms 1144 KB Output is correct
5 Correct 56 ms 1144 KB Output is correct
6 Correct 43 ms 1276 KB Output is correct
7 Correct 35 ms 1016 KB Output is correct
8 Correct 47 ms 1272 KB Output is correct
9 Correct 72 ms 1656 KB Output is correct
10 Correct 80 ms 1656 KB Output is correct
11 Correct 46 ms 1204 KB Output is correct
12 Incorrect 78 ms 1656 KB Output isn't correct
13 Incorrect 50 ms 1272 KB Output isn't correct
14 Incorrect 45 ms 1144 KB Output isn't correct
15 Incorrect 76 ms 1656 KB Output isn't correct
16 Correct 102 ms 2296 KB Output is correct
17 Correct 155 ms 3164 KB Output is correct
18 Incorrect 112 ms 2552 KB Output isn't correct
19 Incorrect 133 ms 2684 KB Output isn't correct
20 Incorrect 161 ms 3064 KB Output isn't correct