Submission #1222212

#	Time	Username	Problem	Language	Result	Execution time	Memory
1222212		jakeob77	Naval battle (CEOI24_battle)	C++17	6 / 100	3109 ms	790652 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ins insert
#define pb push_back

void solve(){
    int n;cin>>n;
    vector<pair<char,pair<int,int>>>ladja;
    for(int i=0;i<n;i++){
        int a,b;char c;cin>>a>>b>>c;
        ladja.pb({c,{a,b}});
    }
    vector<pair<int,pair<int,int>>>zab;
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            char smer1=ladja[i].first;
            char smer2=ladja[j].first;
            int x1=ladja[i].second.first;
            int x2=ladja[j].second.first;
            int y1=ladja[i].second.second;
            int y2=ladja[j].second.second;
            if(smer1==smer2) continue;
            if(smer1=='N'){
                if(smer2=='S'){
                    if(x1==x2&&y1>y2){
                        zab.pb({(y1-y2)/2,{i,j}});
                    }
                }
                if(smer2=='W'){
                    if(x2>x1&&y1>y2&&(y1-y2==x2-x1)){
                        zab.pb({x2-x1,{i,j}});
                    }
                }
                if(smer2=='E'){
                    if(x1>x2&&y1>y2&&(y1-y2==x1-x2)){
                        zab.pb({x1-x2,{i,j}});
                    }
                }
            }
            if(smer1=='S'){
                if(smer2=='N'){
                    if(x1==x2&&y1<y2){
                        zab.pb({(y2-y1)/2,{i,j}});
                    }
                }
                if(smer2=='W'){
                    if(x2>x1&&y2>y1&&(x2-x1==y2-y1)){
                        zab.pb({x2-x1,{i,j}});
                    }
                }
                if(smer2=='E'){
                    if(x1>x2&&y2>y1&&(x1-x2==y1-y2)){
                        zab.pb({x1-x2,{i,j}});
                    }
                }
            }   
            if(smer1=='W'){
                if(smer2=='N'){
                    if(x1>x2&&y2>y1&&(x1-x2==y2-y1)){
                        zab.pb({x1-x2,{i,j}});
                    }
                }
                if(smer2=='S'){
                    if(x1>x2&&y1>y2&&(x1-x2==y1-y2)){
                        zab.pb({x1-x2,{i,j}});
                    }
                }
                if(smer2=='E'){
                    if(y1==y2&&x1>x2){
                        zab.pb({(x1-x2)/2,{i,j}});
                    }
                }
            }
            if(smer1=='E'){
                if(smer2=='N'){
                    if(x2>x1&&y2>y1&&(x2-x1==y2-y1)){
                        zab.pb({x2-x1,{i,j}});
                    }   
                }
                if(smer2=='S'){
                    if((x2-x1==y1-y2)&&x2>x1&&y1>y2){
                        zab.pb({x2-x1,{i,j}});
                    }
                }
                if(smer2=='W'){
                    if(y1==y2&&x1<x2){
                        zab.pb({(x2-x1)/2,{i,j}});
                    }
                }
            }
        }
    }
    sort(zab.begin(),zab.end());
    vector<int>je(n,1e9+2);
    for(int i=0;i<zab.size();i++){
        int time=zab[i].first;
        int ena=zab[i].second.first;
        int dva=zab[i].second.second;
        if(je[ena]<time||je[dva]<time) continue;
        je[ena]=time;
        je[dva]=time;
    }
    for(int i=0;i<n;i++){
        if(je[i]==int(1e9+2)){
            cout<<i+1<<endl;
        }
    }
}

int main() {
	int t=1;
    while(t--)solve();
}

• Subtask 0: 0 / 0
• Subtask 1: 6 / 6
• Subtask 2: 0 / 12
• Subtask 3: 0 / 8
• Subtask 4: 0 / 11
• Subtask 5: 0 / 9
• Subtask 6: 0 / 30
• Subtask 7: 0 / 24