#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#define pb push_back
#define fi first
#define se second
#define all(x) x.begin(),x.end()
const int mxN = 2e5+5000;
void io(){
/* #ifndef ONLINE_JUDGE
freopen("input.in","r",stdin);
freopen("output.out","w",stdout);
#endif*/
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
}
vector<int> adj[mxN];
int dp[mxN][505],answers[505][505];
void dfs(int u){
for(auto it:adj[u]){
dfs(it);
for(int i=1;i<=500;++i){
dp[u][i]+=dp[it][i];
}
}
}
int main(){
io();
memset(dp,0,sizeof(dp));
int n,r,q,u,man,reg;cin>>n>>r>>q;
cin>>u;
++dp[1][u];
dp[1][0]=u;
for(int i=2;i<=n;++i){
cin>>u>>man;
adj[u].pb(i);
++dp[i][man];
dp[i][0]=man;
}
dfs(1);
for(int i=1;i<=n;++i){
for(int j=1;j<=r;++j){
answers[dp[i][0]][j]+=dp[i][j];
}
}
while(q--){
cin>>man>>reg;
cout<<answers[man][reg]<<endl;
}
return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
regions.cpp:25:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
25 | #pragma GCC optimize("-fwhole-program")
| ^
regions.cpp:32:41: warning: bad option '-fstrict-overflow' to pragma 'optimize' [-Wpragmas]
32 | #pragma GCC optimize("-fstrict-overflow")
| ^
regions.cpp:34:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
34 | #pragma GCC optimize("-fcse-skip-blocks")
| ^
regions.cpp:48:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
48 | #pragma GCC optimize("-funsafe-loop-optimizations")
| ^
regions.cpp:59:9: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
59 | void io(){
| ^
regions.cpp:59:9: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
regions.cpp:59:9: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
regions.cpp:59:9: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
regions.cpp:73:15: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
73 | void dfs(int u){
| ^
regions.cpp:73:15: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
regions.cpp:73:15: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
regions.cpp:73:15: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
regions.cpp:83:10: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
83 | int main(){
| ^
regions.cpp:83:10: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
regions.cpp:83:10: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
regions.cpp:83:10: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
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