update

src/7/13/U82726.cpp

@@ -1,6 +1,10 @@
+#include <algorithm>
+#include <array>
 #include <cstdint>
 #include <cstdio>
 #include <iostream>
+#include <tuple>
+#include <vector>
 
 using ll = int64_t;
 
@@ -8,7 +12,7 @@ bool is_num(char c){
     return '0'<=c&&c<='9';
 }
 
-ll get_num(){
+ll getnum(){
     char c;
     do {
         c=getchar();
@@ -20,6 +24,46 @@ ll get_num(){
     return n;
 }
 
-int main(){
+const ll maxn=1e6+5;
+std::vector<std::tuple<ll,ll,ll>> v;
+std::vector<ll> nxt;
+std::vector<ll> ans;
 
+ll getfather(ll n){
+    if(nxt[n]==n)return n;
+    nxt[n] = getfather(nxt[n]);
+    return nxt[n];
+}
+
+#define NV(v) {std::cout<<#v<<" : "<<(v)<<'\n';}
+
+int main(){
+    v.resize(maxn);
+    nxt.resize(maxn);
+    ans.resize(maxn);
+
+    ll n,q;
+    n=getnum();
+    q=getnum();
+    for(ll i=1;i<=q;i++){
+        ll x,y,z;
+        x=getnum();y=getnum();z=getnum();
+        v.push_back({x,y,z});
+    }
+    for(ll i=1;i<=n;i++)nxt[i]=i;
+    for(ll i=n-1;i>=0;i--){
+        auto[l,r,c] = v[i];
+        NV(l)NV(r)NV(c)
+        ll idx=nxt[l];
+        while(idx<=r){
+            ans[idx]=c;
+            nxt[idx]=getfather(nxt[idx+1]);
+            idx=nxt[idx];
+            NV(idx)
+        }
+    }
+    for(ll i=1;i<=n;i++){
+        std::cout<<ans[i]<<' ';
+    }
+    std::cout<<'\n';
 }