Submission #567753

#	Time	Username	Problem	Language	Result	Execution time	Memory
567753		jamezzz	Team Contest (JOI22_team)	C++17	100 / 100	522 ms	24960 KiB

team

#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#define dbg(...) printf(__VA_ARGS__);
#define getchar_unlocked getchar
#else
#define dbg(...)
#endif
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb push_back
#define sz(x) (int)x.size()
#define mnto(x,y) x=min(x,(__typeof__(x))y)
#define mxto(x,y) x=max(x,(__typeof__(x))y)
#define INF 1023456789
#define LINF 1023456789123456789
#define all(x) x.begin(), x.end()
#define disc(x) sort(all(x));x.resize(unique(all(x))-x.begin());
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<pll> vll;
mt19937 rng(time(0));

#define mod 1000000007

inline int add(int a,int b){
	int r=a+b;
	while(r>=mod)r-=mod;
	while(r<0)r+=mod;
	return r;
}

inline int mult(int a,int b){
	return (int)(((ll)(a*b))%mod);
}

inline int rd(){
	int x=0;
	char ch=getchar_unlocked();
	while(!(ch&16))ch=getchar();//keep reading while current character is whitespace
    while(ch&16){//this will break when ‘\n’ or ‘ ‘ is encountered
		x=(x<<3)+(x<<1)+(ch&15);
		ch=getchar_unlocked();
	}
	return x;
}

#define maxn 150005

set<ii> sx,sy,sz;

int n,x[maxn],y[maxn],z[maxn];

void del(int i){
	sx.erase(sx.find({x[i],i}));
	sy.erase(sy.find({y[i],i}));
	sz.erase(sz.find({z[i],i}));
}

int main(){
	sf("%d",&n);
	for(int i=0;i<n;++i){
		sf("%d%d%d",&x[i],&y[i],&z[i]);
		sx.insert({x[i],i});
		sy.insert({y[i],i});
		sz.insert({z[i],i});
	}
	while(true){
		if(sx.empty()||sy.empty()||sz.empty())pf("-1\n"),exit(0);
		int a=(*--sx.end()).se,b=(*--sy.end()).se,c=(*--sz.end()).se;
		if(y[a]>=y[b]||z[a]>=z[c])del(a);
		else if(x[b]>=x[a]||z[b]>=z[c])del(b);
		else if(x[c]>=x[a]||y[c]>=y[b])del(c);
		else pf("%d\n",x[a]+y[b]+z[c]),exit(0);
	}
}

Compilation message (stderr)

team.cpp: In function 'int main()':
team.cpp:70:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |  sf("%d",&n);
      |    ^
team.cpp:72:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |   sf("%d%d%d",&x[i],&y[i],&z[i]);
      |     ^

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 27 / 27