oj.uz

Submission #154189

# Submission time Handle Problem Language Result Execution time Memory
154189 2019-09-18T18:48:44 Z Ruxandra985 Uzastopni (COCI15_uzastopni) C++14
120 / 160
 500 ms 17864 KB 
#include <cstdio>
#include <iostream>
#include <vector>
#include <bitset>

using namespace std;
bitset <101> dp[10001][101];
vector <int> v[10001];
int joke[10001],k;
void dfs (int nod){
    int i,vecin,x,y,z,len;
    dp[nod][joke[nod]][joke[nod]] = 1;

    for (i=0;i<v[nod].size();i++){
        dfs (v[nod][i]);
        vecin = v[nod][i];
        /// acum e acum:P
        for (x = joke[nod] + 1; x<=k;x++)
            dp[nod][x] |= dp[vecin][x];
            //for (y=x;y<=k;y++)
              //   dp[nod][x][y] = (dp[nod][x][y] | dp[vecin][x][y]);
        for (x=1;x<joke[nod];x++)
            for (y=x;y<joke[nod];y++)
                 dp[nod][x][y] = (dp[nod][x][y] | dp[vecin][x][y]);

    }
    for (len = 2; len <= k ;len++){
        for (x = 1; x + len - 1 <= k ; x++){
            y = x + len - 1;
            for (z=x;z<y && !dp[nod][x][y];z++){
                dp[nod][x][y] = (dp[nod][x][z] & dp[nod][z+1][y]);
            }
        }
    }
    for (x = joke[nod] + 1; x<=k;x++)
        dp[nod][x].reset();
    for (x=1;x<joke[nod];x++)
        for (y=x;y<joke[nod];y++)
            dp[nod][x][y] = 0;



}
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n,i,x,y,sol,j;
    fscanf (fin,"%d",&n);
    for (i=1;i<=n;i++){
        fscanf (fin,"%d",&joke[i]);
        k = max ( k ,joke[i]);
    }
    for (i=1;i<n;i++){
        fscanf (fin,"%d%d",&x,&y);
        v[x].push_back(y);
    }
    dfs (1);
    sol = 0;
    for (i=1;i<=joke[1];i++)
        for (j=joke[1];j<=k;j++){
            sol = sol + dp[1][i][j];
        }
    fprintf (fout,"%d",sol);
    return 0;
}

Compilation message

uzastopni.cpp: In function 'void dfs(int)':
uzastopni.cpp:14:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<v[nod].size();i++){
              ~^~~~~~~~~~~~~~
uzastopni.cpp: In function 'int main()':
uzastopni.cpp:49:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d",&n);
     ~~~~~~~^~~~~~~~~~~~~
uzastopni.cpp:51:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d",&joke[i]);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~
uzastopni.cpp:55:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d%d",&x,&y);
         ~~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
120.0 / 160.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 3 ms 760 KB Output is correct
4 Correct 3 ms 632 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 48 ms 904 KB Output is correct
7 Correct 47 ms 744 KB Output is correct
8 Correct 48 ms 760 KB Output is correct
9 Correct 45 ms 764 KB Output is correct
10 Correct 45 ms 760 KB Output is correct
11 Correct 40 ms 16632 KB Output is correct
12 Correct 28 ms 16632 KB Output is correct
13 Correct 22 ms 16632 KB Output is correct
14 Execution timed out 1084 ms 17600 KB Time limit exceeded
15 Execution timed out 1060 ms 17864 KB Time limit exceeded
16 Execution timed out 1073 ms 17736 KB Time limit exceeded
17 Correct 22 ms 16632 KB Output is correct
18 Correct 22 ms 16632 KB Output is correct
19 Execution timed out 1081 ms 4828 KB Time limit exceeded
20 Execution timed out 1064 ms 4824 KB Time limit exceeded