Submission #675603

#TimeUsernameProblemLanguageResultExecution timeMemory
675603Darren0724Railway Trip 2 (JOI22_ho_t4)C++17
52 / 100
2037 ms227404 KiB
#pragma GCC optimize("O3")
#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")
#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
const int INF=1e9;
#define pii pair<int,int>
#define endl '\n'
vector<pii> tmp;
struct seg{
    int l,m,r;
    int maxval=-INF,minval=INF;
    int maxlz=-INF,minlz=INF;
    seg *lc,*rc;
    int rmax(){
        return max(maxlz,maxval);
    }
    int rmin(){
        return min(minlz,minval);
    }
    void pull(){
        maxval=max(lc->rmax(),rc->rmax());
        minval=min(lc->rmin(),rc->rmin());
    }
    void push(){
        lc->maxlz=max(lc->maxlz,maxlz);
        rc->maxlz=max(rc->maxlz,maxlz);
        lc->minlz=min(lc->minlz,minlz);
        rc->minlz=min(rc->minlz,minlz);
    }
    seg(int l1,int r1){
        l=l1,r=r1;
        m=(l+r)>>1;
        if(r-l==1){
            maxval=minval=maxlz=minlz=l1;
            return;
        }
        lc=new seg(l,m);
        rc=new seg(m,r);
        pull();
    }
    void add(int a,int b,int x){
        if(a<=l&&b>=r){
            maxlz=max(maxlz,x);
            minlz=min(minlz,x);
            return;
        }
        push();
        if(a<m){
            lc->add(a,b,x);
        }
        if(b>m){
            rc->add(a,b,x);
        }
        pull();
    }
    pii ask(int a,int b){
        if(a<=l&&b>=r){
            return {rmin(),rmax()};
        }
        pii ans={INF,-INF};
        push();
        if(a<m){
            pii p=lc->ask(a,b);
            if(p.first<ans.first)ans.first=p.first;
            if(p.second>ans.second)ans.second=p.second;
        }
        if(b>m){
            pii p=rc->ask(a,b);
            if(p.first<ans.first)ans.first=p.first;
            if(p.second>ans.second)ans.second=p.second;
        }
        pull();
        return ans;
    }
};
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,k;cin>>n>>k;
    vector<seg*> v(17);
    for(int i=0;i<17;i++){
        v[i]=new seg(0,n);
    }
    vector<vector<pii>> dp(17,vector<pii>(n));
    int m;cin>>m;
    for(int i=0;i<m;i++){
        int a,b;cin>>a>>b;a--;b--;
        if(a<b){
            int c=min(a+k,b);
            v[0]->add(a,c,b);
        }
        else{
            int c=max(b+1,a-k+1);
            v[0]->add(c,a+1,b);
        }
    }
    for(int j=0;j<n;j++){
        dp[0][j]=v[0]->ask(j,j+1);
    }
    v[1]=v[0];
    for(int j=0;j<n;j++){
        int a,b;tie(a,b)=dp[0][j];
        dp[1][j]=v[1]->ask(a,b+1);
    }
    for(int i=2;i<17;i++){
        for(int j=0;j<n;j++){
            v[i]->add(j,j+1,dp[i-1][j].first);
            v[i]->add(j,j+1,dp[i-1][j].second);
        }
        for(int j=0;j<n;j++){
            int a,b;tie(a,b)=dp[i-1][j];
            dp[i][j]=v[i]->ask(a,b+1);
        }
    }
    int q;cin>>q;
    for(int i=0;i<q;i++){
        int a,b;cin>>a>>b;a--;b--;
        if(a<b){
            int ans=0;
            int l=a,r=a;
            bool flag=0;
            for(int j=16;j>0;j--){
                int c,d;
                tie(c,d)=v[j]->ask(l,r+1);
                if(d<b){
                    ans+=(1<<(j-1));
                    l=c,r=d;
                }
                else{
                    flag=1;
                }
            }
            if(flag==0){
                cout<<-1<<endl;
            }
            else{
                cout<<ans+1<<endl;
            }
        }
        else{
            int ans=0;
            int l=a,r=a;
            bool flag=0;
            for(int j=16;j>0;j--){
                int c,d;
                tie(c,d)=v[j]->ask(l,r+1);
                if(c>b){
                    ans+=(1<<(j-1));
                    l=c,r=d;
                }
                else{
                    flag=1;
                }
            }
            if(flag==0){
                cout<<-1<<endl;
            }
            else{
                cout<<ans+1<<endl;
            }
        }
    }

    return 0;
}

Compilation message (stderr)

Main.cpp:21:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
   21 | #pragma GCC optimize("-fwhole-program")
      |                                       ^
Main.cpp:28:41: warning: bad option '-fstrict-overflow' to pragma 'optimize' [-Wpragmas]
   28 | #pragma GCC optimize("-fstrict-overflow")
      |                                         ^
Main.cpp:30:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
   30 | #pragma GCC optimize("-fcse-skip-blocks")
      |                                         ^
Main.cpp:44:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
   44 | #pragma GCC optimize("-funsafe-loop-optimizations")
      |                                                   ^
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   47 | #pragma GCC target("avx2")
      |                          ^
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
Main.cpp:47:26: warning: bad option
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