oj.uz

Submission #154156

# Submission time Handle Problem Language Result Execution time Memory
154156 2019-09-18T16:25:44 Z Ruxandra985 Uzastopni (COCI15_uzastopni) C++14
104 / 160
 500 ms 9084 KB 
#include <cstdio>
#include <iostream>
#include <vector>
#include <bitset>

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

    }
    for (len = 2; len <= k ;len++){
        for (x = 1; x + len - 1 <= k ; x++){
            y = x + len - 1;
            for (z=x;z<y && !dp[x][y][nod];z++){
                dp[x][y][nod] = (dp[x][z][nod] & dp[z+1][y][nod]);
            }
        }
    }
    for (x = joke[nod] + 1; x<=k;x++)
        for (y=x;y<=k;y++)
            dp[x][y][nod] = 0;
    for (x=1;x<joke[nod];x++)
        for (y=x;y<joke[nod];y++)
            dp[x][y][nod] = 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[i][j][1];
        }
    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
104.0 / 160.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 2 ms 632 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 62 ms 7032 KB Output is correct
7 Correct 62 ms 7032 KB Output is correct
8 Correct 60 ms 7032 KB Output is correct
9 Correct 59 ms 6904 KB Output is correct
10 Correct 60 ms 6988 KB Output is correct
11 Incorrect 24 ms 1144 KB Output isn't correct
12 Incorrect 14 ms 1016 KB Output isn't correct
13 Correct 9 ms 1016 KB Output is correct
14 Execution timed out 1087 ms 8952 KB Time limit exceeded
15 Execution timed out 1058 ms 9052 KB Time limit exceeded
16 Execution timed out 1056 ms 9084 KB Time limit exceeded
17 Correct 10 ms 860 KB Output is correct
18 Correct 11 ms 904 KB Output is correct
19 Execution timed out 1079 ms 7400 KB Time limit exceeded
20 Execution timed out 1059 ms 7380 KB Time limit exceeded