update

src/P3383/P3383.cpp

@@ -0,0 +1,52 @@
+#include <bits/stdc++.h>
+using namespace std;
+using ll = int64_t;
+
+const ll maxn{ll(1e8+5)};
+ll n,q,tot,ans[maxn];
+bitset<maxn> f;
+
+void init(){
+    for(ll i{2};i<=n;i++){
+        if(!f[i]){
+            for(ll j{i+i};j<=n;j+=i){
+                f[j]=1;
+            }
+        }
+    }
+}
+
+struct CinNum{
+    char c;
+    ll n;
+    CinNum &operator>>(ll &num){
+        c=n=0;
+        while(!isdigit(c)){
+            c=getchar();
+        }
+        while(isdigit(c)){
+            n=n*10+c-'0';
+            c=getchar();
+        }
+        num=n;
+        return *this;
+    }
+}cinn;
+
+#define cin cinn
+
+int main(){
+    iostream::sync_with_stdio(0)/*,cin.tie(0)*/,cout.tie(0);
+    cin>>n>>q;
+    init();
+    for(ll i{2};i<=n;i++){
+        if(!f[i]){
+            ans[++tot]=i;
+        }
+    }
+    while(q--){
+        ll k;
+        cin>>k;
+        cout<<ans[k]<<'\n';
+    }
+}

src/P8865/P8865.cpp

@@ -0,0 +1,110 @@
+#include <bits/stdc++.h>
+using namespace std;
+using ll = int64_t;
+
+const ll maxn{ll(1e3+5)}, mod{998244353};
+ll t,id,n,m,c,f,tmp,tor[maxn][maxn],totc,tou[maxn][maxn],ptor[maxn][maxn],totf,tod[maxn][maxn];
+bitset<maxn> g[maxn];
+string s;
+
+template<class ...Args>
+void pt(Args&&...args){
+    ((cout<<std::forward<Args>(args)<<' '),...);
+    cout<<'\n';
+}
+
+template<class T,class P>
+ostream&operator<<(ostream &os,const pair<T,P> &p){
+    cout<<"[DEBUG] "<<"( "<<p.first<<", "<<p.second<<" )";
+    return os;
+}
+
+void pnm(const ll (&a)[maxn][maxn]){
+    for(ll i{1};i<=n;i++){
+        cout<<"[DEBUG] ";
+        for(ll j{1};j<=m;j++){
+            cout<<a[i][j]<<' ';
+        }
+        cout<<'\n';
+    }
+    cout<<'\n';
+}
+
+int main(){
+    iostream::sync_with_stdio(0),cin.tie(0),cout.tie(0);
+
+    cin>>t>>id;
+    while(t--){
+        cin>>n>>m>>c>>f;
+        totc=0;
+        totf=0;
+        // pt(n,m,c,f);
+        for(ll i{1};i<=n;i++){
+            cin>>s;
+            for(ll j{1};j<=m;j++){
+                g[i][j]=s[j-1]-'0';
+                // pt(g[i][j]);
+            }
+        }
+
+        // look right
+        for(ll i{1};i<=n;i++){
+            tor[i][m+1]=0;
+            for(ll j{m};j>=0;j--){
+                if(g[i][j]){
+                    tor[i][j]=0;
+                    ptor[i][j]=0;
+                }else{
+                    tor[i][j]=tor[i][j+1]+1;
+                    ptor[i][j]=ptor[i-1][j]+max(ll(0),tor[i][j]-1);
+                }
+            }
+        }
+        // pnm(tor);
+        // pnm(ptor);
+
+        //look up
+        for(ll j{1};j<=m;j++){
+            tou[0][j]=0;
+            for(ll i{1};i<=n;i++){
+                if(g[i][j]){
+                    tou[i][j]=0;
+                }else{
+                    tou[i][j]=tou[i-1][j]+1;
+                }
+            }
+        }
+        // pnm(tou);
+
+        //look down
+        for(ll j{1};j<=m;j++){
+            tod[n+1][j]=0;
+        }
+        for(ll i{n};i>=0;i--){
+            for(ll j{1};j<=m;j++){
+                if(g[i][j]){
+                    tod[i][j]=0;
+                }else{
+                    tod[i][j]=tod[i+1][j]+1;
+                }
+            }
+        }
+        // pnm(tod);
+
+        for(ll j{1};j<m;j++){
+            for(ll i{3};i<=n;i++){
+                if(
+                    tor[i][j]>=2&&tou[i][j]>=3
+                ){
+                    // cout<<make_pair(i,j)<<'\n';
+                    totc = (totc+(ptor[i-2][j]*(tor[i][j]-1))%mod)%mod;
+                    if(tod[i][j]-1>0){
+                        totf = (totf+(ptor[i-1][j]*(tor[i][j]-1)*(tod[i][j]-1))%mod)%mod;
+                    }
+                    // pt(totc,totf);
+                }
+            }
+        }
+        cout<<totc<<' '<<totf<<'\n';
+    }
+}

src/P8865/plant/plant1.ans

@@ -0,0 +1 @@
+4 2

src/P8865/plant/plant1.in

@@ -0,0 +1,6 @@
+1 0
+4 3 1 1
+001
+010
+000
+000

src/P8865/plant/plant2.ans

@@ -0,0 +1 @@
+36 18

src/P8865/plant/plant2.in

@@ -0,0 +1,8 @@
+1 0
+6 6 1 1
+000010
+011000
+000110
+010000
+011000
+000000

src/P8865/plant/plant3.ans

@@ -0,0 +1 @@
+114 514

src/P8865/plant/plant3.in

@@ -0,0 +1,18 @@
+1 0
+16 12 1 1
+000000000001
+011111111111
+000000000011
+011111111111
+010011111111
+010111100011
+010011101111
+011111100011
+111111111111
+000011111111
+011111111111
+000000111111
+011111000111
+011111011111
+011111000111
+011111011111