Submission #1109666

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109666		modwwe	Selling RNA Strands (JOI16_selling_rna)	C++17	100 / 100	302 ms	236396 KiB

selling_rna

#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC optimize("conserve-stack")
#include<bits/stdc++.h>
//#define int long long
#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar

inline int scan()
{
    char c = getchar_unlocked();
    int x = 0;
    while (c < '0' || c > '9')
    {
        c = getchar_unlocked();
    }
    while (c >= '0' && c <= '9')
    {
        x = (x << 1) + (x << 3) + c - '0';
        c = getchar_unlocked();
    }
    return x;
}

void phongbeo();
const int inf = 1e9;
const int mod2 = 1e9 + 7;
const int  mod1 = 998244353;
const ll base=67;
int add(int x,int y)
{
    if(x+y>=mod2) x-=mod2;
    if(x+y<0) x+=mod2;
    return x+y;
}
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a, b, c;
};
struct id
{
    int a, b, c, d;
};
struct ie
{
    int a, b, c, d, e;

};

int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, mid, l2, r2, center;
int  i, s10, s12,k1,k2,k3,s11,t,lim,w,l,r;
int kk;
int el = 19;

main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
        //  fou(task);
    }
    NHP
    /// cin>>s1;
    // modwwe
    phongbeo(),down
    // checktime
}
struct node
{
    node* c[4];
    vector<int> pos;
    node()
    {
        for(int i=0; i<4; i++)
            c[i]=NULL;
    }
};
node* rot=new node();
node* pot=new node();
int getId (char C)
{
    if (C == 'A') return 0;
    else if (C == 'G') return 1;
    else if (C == 'C') return 2;
    else return 3;
}
void add(string x,int k,node* u)
{
    for(int i=0; i<x.size(); i++)
    {
        s2=getId(x[i]);
        if(u->c[s2]==NULL)u->c[s2]=new node();
        u=u->c[s2];
        u->pos.pb(k);
    }
}
ib lefandrig(string x,node* u)
{
    for(int i=0; i<x.size(); i++)
    {
        s2=getId(x[i]);
        if(u->c[s2]==NULL)return{-1,-1};
        u=u->c[s2];
    }
    return {u->pos[0],u->pos.back()};
}
int get(ib c,string x,node* u)
{
    for(int i=0; i<x.size(); i++)
    {
        s2=getId(x[i]);
        if(u->c[s2]==NULL) return 0;
        u=u->c[s2];
    }
    return upper_bound(u->pos.begin(),u->pos.end(),c.b)-lower_bound(u->pos.begin(),u->pos.end(),c.a);
}
string Rev (string &S)
{
    static string res;
    res = "";
    for (int i= S.size() - 1; i>=0; --i) res += S[i];
    return res;
}
void phongbeo()
{
    cin>>n>>m;
    vector<string>a(n);
    for(int i=0; i<n; i++)
        cin>>a[i];
    sort(a.begin(),a.end());
    for(int i=0; i<n; i++)
        add(a[i],i,rot),
            add(Rev(a[i]),i,pot);
    for(int i=1; i<=m; i++)
    {
        string c1,c2;
        cin>>c1>>c2;
        cout<<get(lefandrig(c1,rot),Rev(c2),pot),down
    }
}

Compilation message (stderr)

selling_rna.cpp:76:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   76 | main()
      | ^~~~
selling_rna.cpp: In function 'void add(std::string, int, node*)':
selling_rna.cpp:110:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |     for(int i=0; i<x.size(); i++)
      |                  ~^~~~~~~~~
selling_rna.cpp: In function 'ib lefandrig(std::string, node*)':
selling_rna.cpp:120:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |     for(int i=0; i<x.size(); i++)
      |                  ~^~~~~~~~~
selling_rna.cpp: In function 'int get(ib, std::string, node*)':
selling_rna.cpp:130:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  130 |     for(int i=0; i<x.size(); i++)
      |                  ~^~~~~~~~~
selling_rna.cpp: In function 'int main()':
selling_rna.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
selling_rna.cpp:80:9: note: in expansion of macro 'fin'
   80 |         fin(task);
      |         ^~~

• Subtask 1: 10 / 10
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 40 / 40