Submission #567748

#	Time	Username	Problem	Language	Result	Execution time	Memory
567748		dantoh000	Team Contest (JOI22_team)	C++14	64 / 100	2025 ms	5804 KiB

team

#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;
typedef tuple<int, int, int> iii;
int n;
vector<iii> v;
vector<ii> topush;
vector<ii> P;
vector<int> topush2;
map<int,int> MX;
map<int,int> MN;
map<int,int> ct;
void add(int x, int y){
    if (ct[x] == 0){
        MX[x] = MN[x] = y;
    }
    else{
        MX[x] = max(MX[x], y);
        MN[x] = min(MN[x], y);
    }
    ct[x]++;
}
int query(int x, int y){
    int mx = -1;
    int mx2 = -1;
    int ans = -1;
    for (auto X : MN){
        int b,mnc;
        tie(b,mnc) = X;
        int mxc = MX[b];
        //printf("%d %d %d\n",b,mnc,mxc);
        mx = max(mx, mx2);
        mx2 = -1;
        mx2 = max(mx2, mxc);
        if (b > x && mx > y && mx > mnc){
            ans = max(ans, b+mx);
        }
    }
    //printf("query %d %d = %d\n",x,y,ans);
    return ans;
}

int main(){
    scanf("%d",&n);
    for (int i = 0,a,b,c; i < n; i++){
        scanf("%d%d%d",&a,&b,&c);
        v.emplace_back(a,b,c);
    }
    sort(v.begin(),v.end());
    int last = -1;
    int ans = -1;
    for (auto x : v){
        int a,b,c;
        tie(a,b,c) = x;
        if (a != last){
            for (auto X : topush){
                add(X.first, X.second);
            }
            topush.clear();
            last = a;
        }
        topush.push_back({b,c});
        int CC = query(b,c);
        if (CC != -1) ans = max(ans, CC+a);
        ///printf("%d %d %d\n",a,b,c);
    }
    printf("%d",ans);
}

Compilation message (stderr)

team.cpp: In function 'int main()':
team.cpp:44:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
team.cpp:46:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |         scanf("%d%d%d",&a,&b,&c);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 27