oj.uz

Submission #791874

# Submission time Handle Problem Language Result Execution time Memory
791874 2023-07-24T12:00:49 Z Amylopectin Star Trek (CEOI20_startrek) C++14
23 / 100
 184 ms 52964 KB 
#include <stdio.h>
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <stdlib.h>
using namespace std;
const long long mxn = 1e6 + 10,mo = 1e9 + 7;
struct we
{
    long long to,val[2][2],cur[2],num,ft;
};
vector<struct we> pat[mxn] = {};
long long pid[mxn][2] = {},rwol,stt[mxn][2][3] = {};
long long re(long long cn,long long cidx,long long wh)
{
    long long i,j,fn,fm,ccur = -1,cva0 = 0,fidx,wop = (wh+1)%2,fcur,fva0,cva1 = 0,fva1;
    if(cidx != -1)
    {
        if(pat[cn][cidx].cur[wh] != -1)
        {
            return 0;
        }
    }
    for(i=0; i<pat[cn].size(); i++)
    {
        fn = pat[cn][i].to;
        if(i == cidx)
        {
            continue;
        }
        fidx = pid[pat[cn][i].num][(pat[cn][i].ft + 1)%2];
        re(fn,fidx,wop);
        fcur = pat[fn][fidx].cur[wop];
        fva0 = pat[fn][fidx].val[wop][0];
        fva1 = pat[fn][fidx].val[wop][1];
        if(wh == 0)
        {
            if(ccur == -1)
            {
                ccur = fcur;
                if(ccur < 2)
                {
                    cva0 = fva0;
                    cva1 = fva1;
                }
            }
            else 
            {
                if(fcur == 0)
                {
                    if(ccur != 0)
                    {
                        cva0 = fva0;
                        cva1 = 0;
                    }
                    else
                    {
                        cva0 = 0;
                    }
                    ccur = 0;
                    
                }
                else if(fcur == 1)
                {
                    if(ccur == 0)
                    {
                        // cva0 += fva0;
                        // cva += fva;
                    }
                    else if(ccur == 1)
                    {
                        cva1 += fva1;
                        cva0 = 0;
                    }
                    else 
                    {
                        ccur = 1;
                        cva1 += fva1;
                        cva0 = 0;
                    }
                }
            }
        }
        else 
        {
            if(ccur == -1)
            {
                ccur = fcur;
                if(ccur == 2)
                {
                    ccur = 1;
                }
                // if(ccur < 2)
                // {
                    // cva = fva;
                cva0 = fva0;
                cva1 = fva1;
                // }
            }
            else 
            {
                if(ccur == 0)
                {
                    if(fcur == 0)
                    {
                        cva0 += fva0;
                    }
                    else if(fcur == 1)
                    {
                        ccur = 1;
                        cva0 = fva0;
                        cva1 = fva1;
                    }
                    else 
                    {
                        cva0 = fva0;
                        cva1 = fva1;
                        ccur = 1;
                    }
                }
                else if(ccur == 1)
                {
                    if(fcur >= 1)
                    {
                        cva0 = 0;
                        cva1 = 0;
                        ccur = 2;
                    }
                }
            }
        }
    }
    if(wh == 0)
    {
        if(ccur == -1)
        {
            ccur = 1;
            cva1 = 1;
            cva0 = 0;
        }
        else if(ccur == 0)
        {
            // cva ++;
        }
        else if(ccur >= 1)
        {
            ccur = 1;
            cva1 ++;
        }
    }
    else 
    {
        if(ccur == -1)
        {
            ccur = 0;
            cva0 = 1;
        }
        else if(ccur == 0)
        {
            cva0 ++;
        }
    }
    if(cidx == -1)
    {
        stt[cn][wh][0] = cva0;
        stt[cn][wh][1] = cva1;
        stt[cn][wh][2] = ccur;
    }
    else 
    {
        pat[cn][cidx].cur[wh] = ccur;
        pat[cn][cidx].val[wh][0] = cva0;
        pat[cn][cidx].val[wh][1] = cva1;
    }
    return 0;
}
int main()
{
    // freopen("input1.txt","r",stdin);
    long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
    scanf("%lld %lld",&n,&m);
    for(i=1; i<n; i++)
    {
        scanf("%lld %lld",&cn,&cm);
        pid[i][0] = pat[cn].size();
        pid[i][1] = pat[cm].size();
        pat[cn].push_back({cm,{{-1,-1},{-1,-1}},{-1,-1},i,0});
        pat[cm].push_back({cn,{{-1,-1},{-1,-1}},{-1,-1},i,1});
    }
    uw = 0;
    cva0 = 0;
    cva1 = 0;
    for(i=1; i<=n; i++)
    {
        re(i,-1,0);
        re(i,-1,1);
        if(stt[i][0][2] == 0)
        {
            cva0 ++;
        }
        if(stt[i][1][2] == 0)
        {
            cva1 ++;
        }
    }
    ans = 0;
    if(stt[1][0][2] == 0)
    {
        ans = (n - stt[1][0][0] - stt[1][0][1]) * n;
    }
    ans += stt[1][0][0] * cva0 + stt[1][0][1] * cva1;
    printf("%lld\n",ans);
    return 0;
}

Compilation message

startrek.cpp: In function 'long long int re(long long int, long long int, long long int)':
startrek.cpp:25:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<we>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     for(i=0; i<pat[cn].size(); i++)
      |              ~^~~~~~~~~~~~~~~
startrek.cpp:17:17: warning: unused variable 'j' [-Wunused-variable]
   17 |     long long i,j,fn,fm,ccur = -1,cva0 = 0,fidx,wop = (wh+1)%2,fcur,fva0,cva1 = 0,fva1;
      |                 ^
startrek.cpp:17:22: warning: unused variable 'fm' [-Wunused-variable]
   17 |     long long i,j,fn,fm,ccur = -1,cva0 = 0,fidx,wop = (wh+1)%2,fcur,fva0,cva1 = 0,fva1;
      |                      ^~
startrek.cpp: In function 'int main()':
startrek.cpp:181:17: warning: unused variable 'j' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                 ^
startrek.cpp:181:29: warning: unused variable 'fn' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                             ^~
startrek.cpp:181:32: warning: unused variable 'fm' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                ^~
startrek.cpp:181:35: warning: unused variable 'cl' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                   ^~
startrek.cpp:181:38: warning: unused variable 'cr' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                      ^~
startrek.cpp:181:41: warning: unused variable 'su' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                         ^~
startrek.cpp:181:44: warning: unused variable 'cen' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                            ^~~
startrek.cpp:181:58: warning: unused variable 'ccur' [-Wunused-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                                          ^~~~
startrek.cpp:181:63: warning: variable 'uw' set but not used [-Wunused-but-set-variable]
  181 |     long long i,j,n,m,cn,cm,fn,fm,cl,cr,su,cen,cva0,cva1,ccur,uw,ans;
      |                                                               ^~
startrek.cpp:182:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  182 |     scanf("%lld %lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
startrek.cpp:185:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  185 |         scanf("%lld %lld",&cn,&cm);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23800 KB Output is correct
2 Incorrect 13 ms 24048 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 23768 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 10 ms 23764 KB Output is correct
3 Correct 12 ms 23796 KB Output is correct
4 Correct 12 ms 23776 KB Output is correct
5 Correct 14 ms 23824 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 10 ms 23764 KB Output is correct
3 Correct 12 ms 23796 KB Output is correct
4 Correct 12 ms 23776 KB Output is correct
5 Correct 14 ms 23824 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 11 ms 24020 KB Output is correct
8 Correct 13 ms 24164 KB Output is correct
9 Correct 15 ms 24020 KB Output is correct
10 Correct 11 ms 24020 KB Output is correct
11 Correct 10 ms 24056 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 10 ms 23764 KB Output is correct
3 Correct 12 ms 23796 KB Output is correct
4 Correct 12 ms 23776 KB Output is correct
5 Correct 14 ms 23824 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 11 ms 24020 KB Output is correct
8 Correct 13 ms 24164 KB Output is correct
9 Correct 15 ms 24020 KB Output is correct
10 Correct 11 ms 24020 KB Output is correct
11 Correct 10 ms 24056 KB Output is correct
12 Incorrect 184 ms 52964 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 10 ms 23764 KB Output is correct
3 Correct 12 ms 23796 KB Output is correct
4 Correct 12 ms 23776 KB Output is correct
5 Correct 14 ms 23824 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 11 ms 24020 KB Output is correct
8 Correct 13 ms 24164 KB Output is correct
9 Correct 15 ms 24020 KB Output is correct
10 Correct 11 ms 24020 KB Output is correct
11 Correct 10 ms 24056 KB Output is correct
12 Correct 23 ms 23680 KB Output is correct
13 Incorrect 13 ms 24052 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 10 ms 23764 KB Output is correct
3 Correct 12 ms 23796 KB Output is correct
4 Correct 12 ms 23776 KB Output is correct
5 Correct 14 ms 23824 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 11 ms 24020 KB Output is correct
8 Correct 13 ms 24164 KB Output is correct
9 Correct 15 ms 24020 KB Output is correct
10 Correct 11 ms 24020 KB Output is correct
11 Correct 10 ms 24056 KB Output is correct
12 Incorrect 184 ms 52964 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23800 KB Output is correct
2 Incorrect 13 ms 24048 KB Output isn't correct
3 Halted 0 ms 0 KB -