oj.uz

Submission #333689

# Submission time Handle Problem Language Result Execution time Memory
333689 2020-12-07T13:53:20 Z beksultan04 Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 492 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define pb push_back
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
int a[N],b[N],q[N],dp[N],n,sum;

void add(int x){
    int i;
    for (i=10000;i>=0;--i){
        dp[i+x]+=dp[i];
    }
    ret ;
}

void del(int x){
    int i;
    for (i=0;i<=10000;++i){
        dp[i+x]-=dp[i];
    }
    ret ;
}

bool is(int x){
    int i;
    for (i=1;i<=n;++i){
        del(q[i]);
        if ((sum-q[i]+x)/2 >= x && dp[(sum-q[i]+x)/2-x]==0 || (sum-q[i]+x)/2 < x){
            add(q[i]);
            ret 0;
        }
        add(q[i]);
    }
    ret 1;
}

main(){
    int i,j,x;
    scan1(n)
    for (i=1;i<=n;++i)
        scan1(q[i])
    dp[0]=1;
    for (i=1;i<=n;++i){
        if (i!= 1 && q[i] %2 != q[i-1]%2){
            cout <<0;
            ret 0;
        }
        sum+=q[i];
        add(q[i]);
    }
    if (dp[sum/2]==0 || sum&1){
        cout <<0;
        ret 0;
    }
    vector <int> ans;
    for (x=1;x<sum;++x){
        if (x%2 == q[1]%2 && is(x))ans.pb(x);
    }
    cout <<ans.size()<<"\n";
    for (i=0;i<ans.size();++i){
        cout <<ans[i]<<" ";
    }
}

Compilation message

bootfall.cpp: In function 'bool is(long long int)':
bootfall.cpp:38:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   38 |         if ((sum-q[i]+x)/2 >= x && dp[(sum-q[i]+x)/2-x]==0 || (sum-q[i]+x)/2 < x){
      |             ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
bootfall.cpp: At global scope:
bootfall.cpp:47:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   47 | main(){
      |      ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:70:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |     for (i=0;i<ans.size();++i){
      |              ~^~~~~~~~~~~
bootfall.cpp:48:11: warning: unused variable 'j' [-Wunused-variable]
   48 |     int i,j,x;
      |           ^
bootfall.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
bootfall.cpp:49:5: note: in expansion of macro 'scan1'
   49 |     scan1(n)
      |     ^~~~~
bootfall.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
bootfall.cpp:51:9: note: in expansion of macro 'scan1'
   51 |         scan1(q[i])
      |         ^~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 50 ms 364 KB Output is correct
12 Correct 4 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 45 ms 364 KB Output is correct
15 Correct 42 ms 364 KB Output is correct
16 Correct 64 ms 364 KB Output is correct
17 Correct 19 ms 364 KB Output is correct
18 Correct 36 ms 364 KB Output is correct
19 Correct 28 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 50 ms 364 KB Output is correct
12 Correct 4 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 45 ms 364 KB Output is correct
15 Correct 42 ms 364 KB Output is correct
16 Correct 64 ms 364 KB Output is correct
17 Correct 19 ms 364 KB Output is correct
18 Correct 36 ms 364 KB Output is correct
19 Correct 28 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Execution timed out 1082 ms 492 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 50 ms 364 KB Output is correct
12 Correct 4 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 45 ms 364 KB Output is correct
15 Correct 42 ms 364 KB Output is correct
16 Correct 64 ms 364 KB Output is correct
17 Correct 19 ms 364 KB Output is correct
18 Correct 36 ms 364 KB Output is correct
19 Correct 28 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Execution timed out 1082 ms 492 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 50 ms 364 KB Output is correct
12 Correct 4 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 45 ms 364 KB Output is correct
15 Correct 42 ms 364 KB Output is correct
16 Correct 64 ms 364 KB Output is correct
17 Correct 19 ms 364 KB Output is correct
18 Correct 36 ms 364 KB Output is correct
19 Correct 28 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Execution timed out 1082 ms 492 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 364 KB Output is correct
5 Correct 26 ms 364 KB Output is correct
6 Correct 3 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 32 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 8 ms 364 KB Output is correct
11 Correct 50 ms 364 KB Output is correct
12 Correct 4 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 45 ms 364 KB Output is correct
15 Correct 42 ms 364 KB Output is correct
16 Correct 64 ms 364 KB Output is correct
17 Correct 19 ms 364 KB Output is correct
18 Correct 36 ms 364 KB Output is correct
19 Correct 28 ms 364 KB Output is correct
20 Correct 9 ms 364 KB Output is correct
21 Execution timed out 1082 ms 492 KB Time limit exceeded
22 Halted 0 ms 0 KB -