oj.uz

Submission #730627

# Submission time Handle Problem Language Result Execution time Memory
730627 2023-04-26T08:07:39 Z Huseyn123 Kutije (COCI21_kutije) C++14
70 / 70
 173 ms 26980 KB 
#include <bits/stdc++.h>
#define MAX 300001
#define INF INT_MAX
#define MOD 1000000007
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ins insert
#define ff first
#define ss second
#define gett(x,m) get<m>(x)
#define all(a) a.begin(),a.end()
#define lb(a,b) lower_bound(all(a),b)
#define ub(a,b) upper_bound(all(a),b)
#define sortv(a) sort(all(a))
#define sorta(a,sz) sort(a,a+sz)
#define inputar(a,b){\
    for(int i=0;i<b;i++){\
        cin >> a[i];\
    }\
}
#define inputvec(a,b){\
    for(int i=0;i<b;i++){\
        ll num;\
        cin >> num;\
        a.pb(num);\
    }\
}
#define outputar(a,b){\
    for(int i=0;i<b;i++){\
        cout << a[i] << " ";\
    }\
    cout << "\n";\
}
#define outputvec(a){\
    for(auto x:a){\
        cout << x << " ";\
    }\
    cout << "\n";\
}
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef tuple<ll,ll,ll> tll;
typedef pair<ll,ll> pll;
typedef double db;
typedef long double ldb;
inline void USACO(string filename){
  freopen((filename+".in").c_str(),"r",stdin);
  freopen((filename+".out").c_str(),"w",stdout);
}
ll n,q,t=1,m,n2,m2,k,cnt=0,a[MAX],b[MAX],d[MAX],d2[MAX],x,y,z,x2,y2,z2,res1=0,cnt1,cnt2,cnt3;
ll c[1001][1001];
ll c2[1001][1001];
ll fact[MAX];
ll inv_fact[MAX];
//char c;
string str[MAX];
string s1,s2;
const int mod = 998244353;
ll modmul(ll x,ll y,ll md){
    if(y==1){
        return x;
    }
    if(y%2){
        return (x+modmul(x,y-1,md))%md;
    }
    else{
        return (modmul((x+x)%md,y/2,md))%md;
    }
}
ll powmod(ll x,ll y,ll md){
    x%=md;
    if(x==0){
        return 0;
    }
    ll res=1;
    while(y){
        if(y%2==1){
            res*=x;
            res%=md;
        }
        x*=x;
        x%=md;
        y/=2;
    }
    return res;
}
ll pow2(ll x,ll y){
    if(x==0){
        return 0;
    }
    ll res=1;
    while(y>0){
        if(y%2==1){
            if(res>=1e18/x){
                res=1e18;
            }
            else{
                res*=x;
            }
        }
        if(x>=1e18/x){
            x=1e18;
        }
        else{
            x*=x;
        }
        y/=2;
    }
    return res;
}
ll inv(ll n,ll md){
    return powmod(n,md-2,md);
}
ll nCkm(ll n,ll k,ll md){
    if(n-k<0){
        return 0;
    }
    return fact[n]*inv_fact[k]%md*inv_fact[n-k]%md;
}
ll nCk(ll x,ll y){
    if(x<y){
        return 0;
    }
    ll res=1;
    if(y>x-y){
        for(int i=y+1;i<=x;i++){
            res*=i;
        }
        for(int i=2;i<=x-y;i++){
            res/=i;
        }
    }
    else{
        for(int i=x-y+1;i<=x;i++){
            res*=i;
        }
        for(int i=2;i<=y;i++){
            res/=i;
        }
    }
    return res;
}
ll countbits(ll x){
    ll cnt=0;
    while(x){
        cnt+=x&1;
        x>>=1;
    }
    return cnt;
}
ll gcd(ll x,ll y){
    if(y==0){
        return x;
    }
    return gcd(y,x%y);
}
ll lcm(ll x,ll y){
    return x*y/gcd(x,y);
}
bool alpha(char c1,char c2){
    ll h1,h2;
    if(c1>='a'){
        h1=c1-'a';
    }
    else{
        h1=c1-'A';
    }
    if(c2>='a'){
        h2=c2-'a';
    }
    else{
        h2=c2-'A';
    }
    if(h1==h2){
        return c1<c2;
    }
    else{
        return h1<h2;
    }
}
ll dx[4]={1,0,0,-1};
ll dy[4]={0,1,-1,0};
struct custom_hash {
   static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};
struct data{
    ll dt[2][2];
};
data f(data x,data y){
    data res;
    res.dt[0][0]=res.dt[0][1]=res.dt[1][0]=res.dt[1][1]=INF;
    for(int i=0;i<2;i++){
        for(int j=0;j<2;j++){
            ll h=x.dt[i][0];
            if(y.dt[1][j]<=INF-h){
                h+=y.dt[1][j];
            }
            else{
                h=INF;
            }
            res.dt[i][j]=min(res.dt[i][j],h);
            h=x.dt[i][1];
            if(y.dt[0][j]<=INF-h){
                h+=y.dt[0][j];
            }
            else{
                h=INF;
            }
            res.dt[i][j]=min(res.dt[i][j],h);
            h=x.dt[i][1];
            if(y.dt[1][j]<=INF-h){
                h+=y.dt[1][j];
            }
            else{
                h=INF;
            }
            res.dt[i][j]=min(res.dt[i][j],h);
        }
    }
    return res;
}
struct segtree{
    int size;
    vector<data> dp;
    void build(vector<ll> &a,int x,int lx,int rx){
        if(rx-lx==1){
            if(lx<(int)a.size()){
                dp[x].dt[1][1]=a[lx];
                dp[x].dt[0][0]=0;
            }
            return;
        }
        int m=(lx+rx)/2;
        build(a,2*x+1,lx,m);
        build(a,2*x+2,m,rx);
        dp[x]=f(dp[2*x+1],dp[2*x+2]);
    }
    void build(vector<ll> &a){
        build(a,0,0,size);
    }
    void init(int n){
        size=1;
        while(size<n){
            size*=2;
        }
        data h;
        h.dt[0][1]=h.dt[1][0]=INF;
        h.dt[0][0]=h.dt[1][1]=INF;
        dp.assign(2*size,h);
    }
    data get_res(int l,int r,int x,int lx,int rx){
        if(lx>=r || rx<=l){
            data h;
            h.dt[0][1]=h.dt[1][0]=0;
            h.dt[0][0]=h.dt[1][1]=INF;
            return h;
        }
        if(lx>=l && rx<=r){
            //cout << lx << " " << rx << " " << dp[x].dt[0][0] << " " << dp[x].dt[0][1] << " " << dp[x].dt[1][0] << " " << dp[x].dt[1][1]  << "\n";
            return dp[x];
        }
        data s1,s2;
        int m=(lx+rx)/2;
        s1=get_res(l,r,2*x+1,lx,m);
        s2=get_res(l,r,2*x+2,m,rx);
        data h=f(s1,s2);
        //cout << lx << " " << rx << " " << h.dt[0][0] << " " << h.dt[0][1]  << " " << h.dt[1][0] << " " << h.dt[1][1] << "\n";
        return f(s1,s2);
    }
    data get_res(int l,int r){
        return get_res(l,r,0,0,size);
    }
    void set(int i,int v,int x,int lx,int rx){
        if(rx-lx==1){
            dp[x].dt[1][1]=v;
            dp[x].dt[0][0]=0;
            return;
        }
        int m=(lx+rx)/2;
        if(i<m){
            set(i,v,2*x+1,lx,m);
        }
        else{
            set(i,v,2*x+2,m,rx);
        }
        dp[x]=f(dp[2*x+1],dp[2*x+2]);
        //cout << lx << " " << rx << " " << dp[x].dt[0][0] << " " << dp[x].dt[0][1] << " " << dp[x].dt[1][0] << " " << dp[x].dt[1][1]  << "\n";
    }
    void set(int i,int v){
        set(i,v,0,0,size);
    }
};
struct dsu{
    vector<ll> e;
    void init(int n){
        e.resize(n+1,-1);
    }
    int get(int x){
        if(e[x]<0){
            return x;
        }
        else{
            return e[x]=get(e[x]);
        }
    }
    int size(int x){
        return -e[get(x)];
    }
    bool same_set(int x,int y){
        return (get(x)==get(y));
    }
    bool unite(int x,int y){
        x=get(x);
        y=get(y);
        if(x==y){
            return false;
        }
        if(e[x]>e[y]){
            swap(x,y);
        }
        e[x]+=e[y];
        e[y]=x;
        return true;
    }
};
vector<vector<ll>> g;
bitset<1001> c3[1001];
void dfs(ll v,ll y){
    c3[y][v]=true;
    for(auto x:g[v]){
        if(c3[y][x]){
            continue;
        }
        if(x<y){
            c3[y]|=c3[x];
            continue;
        }
        dfs(x,y);
    }
}
void solve(){
    cin >> n >> m >> k;
    g.resize(n+1);
    for(int i=0;i<m;i++){
        for(int j=1;j<=n;j++){
            cin >> x;
            if(x!=j){
                g[x].pb(j);
            }
        }
    }
    for(int i=1;i<=n;i++){
        dfs(i,i);
    }
    for(int i=0;i<k;i++){
        cin >> x >> y;
        if(c3[x][y]==1){
            cout << "DA" << "\n";
        }
        else{
            cout << "NE" << "\n";
        }
    }
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //USACO("poetry");
    //freopen("input.txt","r",stdin);
    //cin >> t;
    ll cnt1=1;
    while(t--){
        solve();
        cnt1++;
    }
}
/*
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
ifstream fin("template.in");
ofstream fout("template.out");
*/
/*
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
ifstream fin("template.in");
ofstream fout("template.out");
*/
/*
ll b[51][51];
b[0][0] = 1;
    for (int n = 1; n <= 50; ++n){
        b[n][0] = b[n][n] = 1;
        for (int k = 1; k < n; ++k)
            b[n][k] = b[n - 1][k - 1] + b[n - 1][k];
    }
*/

Compilation message

Main.cpp: In member function 'data segtree::get_res(int, int, int, int, int)':
Main.cpp:278:14: warning: variable 'h' set but not used [-Wunused-but-set-variable]
  278 |         data h=f(s1,s2);
      |              ^

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 11344 KB Output is correct
2 Correct 80 ms 11200 KB Output is correct
3 Correct 76 ms 11076 KB Output is correct
4 Correct 92 ms 11380 KB Output is correct
5 Correct 80 ms 11340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9812 KB Output is correct
2 Correct 6 ms 9864 KB Output is correct
3 Correct 5 ms 9772 KB Output is correct
4 Correct 5 ms 9812 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 5 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 8 ms 9812 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9812 KB Output is correct
2 Correct 6 ms 9864 KB Output is correct
3 Correct 5 ms 9772 KB Output is correct
4 Correct 5 ms 9812 KB Output is correct
5 Correct 6 ms 9812 KB Output is correct
6 Correct 5 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 8 ms 9812 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 8 ms 9812 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 7 ms 9848 KB Output is correct
14 Correct 5 ms 9812 KB Output is correct
15 Correct 6 ms 9820 KB Output is correct
16 Correct 6 ms 9872 KB Output is correct
17 Correct 6 ms 9812 KB Output is correct
18 Correct 6 ms 9812 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 6 ms 9676 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 11344 KB Output is correct
2 Correct 80 ms 11200 KB Output is correct
3 Correct 76 ms 11076 KB Output is correct
4 Correct 92 ms 11380 KB Output is correct
5 Correct 80 ms 11340 KB Output is correct
6 Correct 5 ms 9812 KB Output is correct
7 Correct 6 ms 9864 KB Output is correct
8 Correct 5 ms 9772 KB Output is correct
9 Correct 5 ms 9812 KB Output is correct
10 Correct 6 ms 9812 KB Output is correct
11 Correct 5 ms 9812 KB Output is correct
12 Correct 7 ms 9812 KB Output is correct
13 Correct 8 ms 9812 KB Output is correct
14 Correct 7 ms 9684 KB Output is correct
15 Correct 6 ms 9684 KB Output is correct
16 Correct 8 ms 9812 KB Output is correct
17 Correct 5 ms 9812 KB Output is correct
18 Correct 7 ms 9848 KB Output is correct
19 Correct 5 ms 9812 KB Output is correct
20 Correct 6 ms 9820 KB Output is correct
21 Correct 6 ms 9872 KB Output is correct
22 Correct 6 ms 9812 KB Output is correct
23 Correct 6 ms 9812 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 6 ms 9676 KB Output is correct
26 Correct 163 ms 20212 KB Output is correct
27 Correct 151 ms 20144 KB Output is correct
28 Correct 142 ms 19284 KB Output is correct
29 Correct 173 ms 20084 KB Output is correct
30 Correct 126 ms 15996 KB Output is correct
31 Correct 159 ms 19140 KB Output is correct
32 Correct 156 ms 22940 KB Output is correct
33 Correct 163 ms 26980 KB Output is correct
34 Correct 164 ms 19220 KB Output is correct
35 Correct 153 ms 23520 KB Output is correct