oj.uz

Submission #154735

# Submission time Handle Problem Language Result Execution time Memory
154735 2019-09-24T10:54:39 Z arnold518 PIN (CEOI10_pin) C++14
60 / 100
 149 ms 3148 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;
}

int 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;
}

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 'int 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:46:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
pin.cpp: In function 'int main()':
pin.cpp:50:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
pin.cpp:52:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &D);
     ~~~~~^~~~~~~~~~~~~~~~
pin.cpp:56:14: 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 35 ms 1020 KB Output is correct
5 Correct 42 ms 1144 KB Output is correct
6 Correct 41 ms 1144 KB Output is correct
7 Correct 35 ms 1016 KB Output is correct
8 Correct 46 ms 1144 KB Output is correct
9 Correct 71 ms 1640 KB Output is correct
10 Correct 78 ms 1656 KB Output is correct
11 Correct 44 ms 1196 KB Output is correct
12 Incorrect 74 ms 1656 KB Output isn't correct
13 Incorrect 49 ms 1280 KB Output isn't correct
14 Incorrect 45 ms 1208 KB Output isn't correct
15 Incorrect 74 ms 1656 KB Output isn't correct
16 Correct 96 ms 2296 KB Output is correct
17 Correct 149 ms 3148 KB Output is correct
18 Incorrect 109 ms 2424 KB Output isn't correct
19 Incorrect 129 ms 2800 KB Output isn't correct
20 Incorrect 146 ms 3068 KB Output isn't correct