Submission #240359

# Submission time Handle Problem Language Result Execution time Memory
240359 2020-06-19T13:44:47 Z b00n0rp Snake Escaping (JOI18_snake_escaping) C++17
58 / 100
793 ms 15064 KB
// --------------------------------------------------<TEMPLATE>--------------------------------------------------
// --------------------<optimizations>--------------------
#pragma GCC optimize("O3")
//(UNCOMMENT WHEN HAVING LOTS OF RECURSIONS)\
#pragma comment(linker, "/stack:200000000")
//(UNCOMMENT WHEN NEEDED)
#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector,fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
// -------------------</optimizations>--------------------
 
// ---------------<Headers and namespaces>----------------
#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <ratio>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace __gnu_pbds;
using namespace __gnu_cxx;
*/
// ---------------</Headers and namespaces>---------------
 
// -----------------<Defines and typedefs>----------------
// typedef tree<int,null_type,less<int>,rb_tree_tag, \
tree_order_statistics_node_update> indexed_set; // use less_equal for multiset
// order_of_key (val): returns the no. of values less than val
// find_by_order (k): returns the iterator to kth largest element.(0-based)
 
typedef long double LD;
typedef long long ll;
// #define int ll
#define pb push_back
#define mp make_pair
#define REP(i,n) for (int i = 0; i < n; i++)
#define FOR(i,a,b) for (int i = a; i < b; i++)
#define REPD(i,n) for (int i = n-1; i >= 0; i--)
#define FORD(i,a,b) for (int i = a; i >= b; i--)
#define remax(a,b) a = max(a,b)
#define remin(a,b) a = min(a,b)
#define all(v) v.begin(),v.end()
typedef map<int,int> mii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
#define F first
#define S second
#define PQ(type) priority_queue<type>
#define PQD(type) priority_queue<type,vector<type>,greater<type> >
#define ITR :: iterator it
#define WL(t) while(t --)
#define SZ(x) ((int)(x).size())
#define runtime() ((double)clock() / CLOCKS_PER_SEC)
#define TR(container,it) for(typeof(container.begin()) it=container.begin();it!=container.end();it++)
#define sqr(x) ((x)*(x))
#define inrange(i,a,b) ((i>=min(a,b)) && (i<=max(a,b)))
 
// -----<SCANF>-----
#define sfi(x) scanf("%d",&x);
#define sfi2(x,y) scanf("%d%d",&x,&y);
#define sfi3(x,y,z) scanf("%d%d%d",&x,&y,&z);
 
#define sfl(x) scanf("%lld",&x);
#define sfl2(x,y) scanf("%lld%lld",&x,&y);
#define sfl3(x,y,z) scanf("%lld%lld%lld",&x,&y,&z);
#define sfl4(x,y,z,x1) scanf("%lld%lld%lld%lld",&x,&y,&z,&x1);
#define sfl5(x,y,z,x1,y1) scanf("%lld%lld%lld%lld%lld",&x,&y,&z,&x1,&y1);
#define sfl6(x,y,z,x1,y1,z1) scanf("%lld%lld%lld%lld%lld%lld",&x,&y,&z,&x1,&y1,&z1);
 
#define sfs(x) scanf("%s",x);
#define sfs2(x,y) scanf("%s%s",x,y);
#define sfs3(x,y,z) scanf("%s%s%s",x,y,z);
// ----</SCANF>-----
 
// ----<PRINTF>-----
#define pfi(x) printf("%d\n",x);
#define pfi2(x,y) printf("%d %d\n",x,y);
#define pfi3(x,y,z) printf("%d %d %d\n",x,y,z);
 
#define pfl(x) printf("%lld\n",x);
#define pfl2(x,y) printf("%lld %lld\n",x,y);
#define pfl3(x,y,z) printf("%lld %lld %lld\n",x,y,z);
 
#define pfs(x) printf("%s\n",x);
#define pfs2(x,y) printf("%s %s\n",x,y);
#define pfs3(x,y,z) printf("%s %s %s\n",x,y,z);
 
#define pwe(x) printf("%lld ",x); // print without end
// ----</PRINTF>----
 
#define FLSH fflush(stdout)
#define fileIO(name) \
    freopen(name".in", "r", stdin); \
    freopen(name".out", "w", stdout);
#define PRECISION(x) cout << fixed << setprecision(x); 
#define FAST_IO ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 
// ----------------</Defines and typedefs>----------------
 
// -------------------<Debugging stuff>-------------------
#define TRACE
 
#ifdef TRACE
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
    cerr << name << " : " << arg1 << std::endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
    const char* comma = strchr(names + 1, ',');cerr.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...);
}
#else
#define trace(...)
#endif
 
// ------------------</Debugging stuff>-------------------
 
// ------------------------<Consts>-----------------------
const int MAXN = 1000005;
const int SQRTN = 1003;
const int LOGN = 22;
const double PI=acos(-1);
 
#ifdef int
const int INF=1e16;
#else
const int INF=1e9;
#endif
 
const int MOD = 1000000007;
const int FMOD = 998244353;
const double eps = 1e-9;
 
// -----------------------</Consts>-----------------------
 
// -------------------------<RNG>-------------------------
mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count()); 
#define SHUF(v) shuffle(all(v), RNG);
// Use mt19937_64 for 64 bit random numbers.
 
// ------------------------</RNG>-------------------------
// ----------------------<MATH>---------------------------
template<typename T> T gcd(T a, T b){return(b?__gcd(a,b):a);}
template<typename T> T lcm(T a, T b){return(a*(b/gcd(a,b)));}
int add(int a, int b, int c = MOD){int res=a+b;return(res>=c?res-c:res);}
int mod_neg(int a, int b, int c = MOD){int res;if(abs(a-b)<c)res=a-b;else res=(a-b)%c;return(res<0?res+c:res);}
int mul(int a, int b, int c = MOD){ll res=(ll)a*b;return(res>=c?res%c:res);}
int muln(int a, int b, int c = MOD){ll res=(ll)a*b;return ((res%c)+c)%c;}
ll mulmod(ll a,ll b, ll m = MOD){ll q = (ll)(((LD)a*(LD)b)/(LD)m);ll r=a*b-q*m;if(r>m)r%=m;if(r<0)r+=m;return r;}
template<typename T>T expo(T e, T n){T x=1,p=e;while(n){if(n&1)x=x*p;p=p*p;n>>=1;}return x;}
template<typename T>T power(T e, T n, T m = MOD){T x=1,p=e;while(n){if(n&1)x=mul(x,p,m);p=mul(p,p,m);n>>=1;}return x;}
template<typename T>T extended_euclid(T a, T b, T &x, T &y){T xx=0,yy=1;y=0;x=1;while(b){T q=a/b,t=b;b=a%b;a=t;\
t=xx;xx=x-q*xx;x=t;t=yy;yy=y-q*yy;y=t;}return a;}
template<typename T>T mod_inverse(T a, T n = MOD){T x,y,z=0;T d=extended_euclid(a,n,x,y);return(d>1?-1:mod_neg(x,z,n));}
const int FACSZ = 1; // Make sure to change this
int fact[FACSZ],ifact[FACSZ];
void precom(int c = MOD){
    fact[0] = 1;
    FOR(i,1,FACSZ) fact[i] = mul(fact[i-1],i,c);
    ifact[FACSZ-1] = mod_inverse(fact[FACSZ-1],c);
    REPD(i,FACSZ-1){
        ifact[i] = mul(i+1,ifact[i+1],c);
    }
}
int ncr(int n,int r,int c = MOD){
    return mul(mul(ifact[r],ifact[n-r],c),fact[n],c);
} 
// ----------------------</MATH>--------------------------
// --------------------------------------------------</TEMPLATE>--------------------------------------------------
 
void solvethetestcase();
 
signed main(){
    // (UNCOMMENT FOR CIN/COUT) \
    FAST_IO
    PRECISION(10)
 
    int t = 1;
    // (UNCOMMENT FOR MULTIPLE TEST CASES) 
    // sfl(t);
    FOR(testcase,1,t+1){
        // (UNCOMMENT FOR CODEJAM) \
        printf("Case #%lld: ",testcase); 
        solvethetestcase();
    }
}   
 
int ST,LT; 
int n,q;
string s;
pii quer[1000005];
int pow3[21];
int dp[4782974];
int ans[1000005];
int last2[4782974];
bitset<2205> lol[2205];

void solvethetestcase(){
    pow3[0] = 1;
    FOR(i,1,18){
        pow3[i] = pow3[i-1]*3;
    }
    cin >> n >> q;
    cin >> s;
    if(n <= 10){
        ST = 0;
        LT = n;
    }
    else{
        ST = 7;
        LT = n-7;
    }
    REP(i,pow3[LT]){
        last2[i] = -1;
        int cur1 = i,cur2 = 0;
        while(cur1){
            if(cur1%3 == 2) last2[i] = cur2;
            cur2++;
            cur1 /= 3;
        }
        // trace(i,last2[i]);
    }
    
    REP(i,(1<<ST)){
        REP(j,pow3[ST]){
            int flag = 1;
            int cur1 = i,cur2 = j;
            REP(k,ST){
                if(cur2%3 != 2 and cur2%3 != cur1%2){
                    flag = 0;
                    break;
                }
                cur1 /= 2;
                cur2 /= 3;
            }
            lol[i][j] = flag;
        }
    }
    REP(i,q){
        string gg;
        cin >> gg;
        REP(j,ST){
            quer[i].F *= 3;
            if(gg[j] == '?') quer[i].F += 2;
            else quer[i].F += (gg[j]-'0');
        }
        FOR(j,ST,n){
            quer[i].S *= 3;
            if(gg[j] == '?') quer[i].S += 2;
            else quer[i].S += (gg[j]-'0');
        }
        // trace(i,quer[i].F,quer[i].S);
    }
    REP(i,(1<<ST)){
        fill(dp,dp+(pow3[LT]+1),0);
        REP(j,pow3[LT]){
            if(last2[j] == -1){
                int cur1 = j,cur2 = 0,cur3 = 0;
                while(cur1){
                    if(cur1%3) cur3 += (1<<cur2);
                    cur2++;
                    cur1 /= 3;
                }
                cur3 |= (i<<LT);
                // trace(cur3);
                dp[j] = (s[cur3]-'0');
            }
            else{
                dp[j] = dp[j-pow3[last2[j]]]+dp[j-pow3[last2[j]]*2];
            }
            // trace(j,dp[j]);
        }
        if(q <= 50000)
        REP(j,q){
            if(lol[i][quer[j].F]) ans[j] += dp[quer[j].S];
        }
    }
    REP(i,q){
        pfl(ans[i])
    }
}

Compilation message

snake_escaping.cpp:4:1: warning: multi-line comment [-Wcomment]
 //(UNCOMMENT WHEN HAVING LOTS OF RECURSIONS)\
 ^
snake_escaping.cpp:54:1: warning: multi-line comment [-Wcomment]
 // typedef tree<int,null_type,less<int>,rb_tree_tag, \
 ^
snake_escaping.cpp:205:5: warning: multi-line comment [-Wcomment]
     // (UNCOMMENT FOR CIN/COUT) \
     ^
snake_escaping.cpp:213:9: warning: multi-line comment [-Wcomment]
         // (UNCOMMENT FOR CODEJAM) \
         ^
snake_escaping.cpp: In function 'void solvethetestcase()':
snake_escaping.cpp:110:33: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
 #define pfl(x) printf("%lld\n",x);
                                 ^
snake_escaping.cpp:310:13:
         pfl(ans[i])
             ~~~~~~               
snake_escaping.cpp:310:9: note: in expansion of macro 'pfl'
         pfl(ans[i])
         ^~~
# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 7 ms 768 KB Output is correct
3 Correct 8 ms 896 KB Output is correct
4 Correct 10 ms 768 KB Output is correct
5 Correct 8 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 8 ms 768 KB Output is correct
8 Correct 8 ms 896 KB Output is correct
9 Correct 8 ms 768 KB Output is correct
10 Correct 8 ms 896 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 7 ms 768 KB Output is correct
3 Correct 8 ms 896 KB Output is correct
4 Correct 10 ms 768 KB Output is correct
5 Correct 8 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 8 ms 768 KB Output is correct
8 Correct 8 ms 896 KB Output is correct
9 Correct 8 ms 768 KB Output is correct
10 Correct 8 ms 896 KB Output is correct
11 Incorrect 793 ms 10748 KB Output isn't correct
12 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 7 ms 768 KB Output is correct
3 Correct 8 ms 896 KB Output is correct
4 Correct 10 ms 768 KB Output is correct
5 Correct 8 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 8 ms 768 KB Output is correct
8 Correct 8 ms 896 KB Output is correct
9 Correct 8 ms 768 KB Output is correct
10 Correct 8 ms 896 KB Output is correct
11 Incorrect 793 ms 10748 KB Output isn't correct
12 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 7 ms 768 KB Output is correct
3 Correct 8 ms 896 KB Output is correct
4 Correct 10 ms 768 KB Output is correct
5 Correct 8 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 8 ms 768 KB Output is correct
8 Correct 8 ms 896 KB Output is correct
9 Correct 8 ms 768 KB Output is correct
10 Correct 8 ms 896 KB Output is correct
11 Correct 684 ms 14828 KB Output is correct
12 Correct 686 ms 14800 KB Output is correct
13 Correct 685 ms 14800 KB Output is correct
14 Correct 677 ms 14928 KB Output is correct
15 Correct 715 ms 14880 KB Output is correct
16 Correct 748 ms 14804 KB Output is correct
17 Correct 640 ms 14824 KB Output is correct
18 Correct 627 ms 15064 KB Output is correct
19 Correct 660 ms 14672 KB Output is correct
20 Correct 682 ms 14824 KB Output is correct
21 Correct 688 ms 14820 KB Output is correct
22 Correct 774 ms 14824 KB Output is correct
23 Correct 625 ms 14700 KB Output is correct
24 Correct 682 ms 14828 KB Output is correct
25 Correct 720 ms 14800 KB Output is correct
26 Correct 631 ms 14824 KB Output is correct
27 Correct 674 ms 14812 KB Output is correct
28 Correct 696 ms 14672 KB Output is correct
29 Correct 652 ms 14824 KB Output is correct
30 Correct 684 ms 14828 KB Output is correct
31 Correct 689 ms 14808 KB Output is correct
32 Correct 648 ms 14804 KB Output is correct
33 Correct 684 ms 14800 KB Output is correct
34 Correct 630 ms 14676 KB Output is correct
35 Correct 675 ms 14800 KB Output is correct
36 Correct 674 ms 14808 KB Output is correct
37 Correct 648 ms 14828 KB Output is correct
38 Correct 634 ms 14824 KB Output is correct
39 Correct 630 ms 14956 KB Output is correct
40 Correct 638 ms 14824 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 896 KB Output is correct
2 Correct 7 ms 768 KB Output is correct
3 Correct 8 ms 896 KB Output is correct
4 Correct 10 ms 768 KB Output is correct
5 Correct 8 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 8 ms 768 KB Output is correct
8 Correct 8 ms 896 KB Output is correct
9 Correct 8 ms 768 KB Output is correct
10 Correct 8 ms 896 KB Output is correct
11 Incorrect 793 ms 10748 KB Output isn't correct
12 Halted 0 ms 0 KB -