Submission #862462

#	Time	Username	Problem	Language	Result	Execution time	Memory
862462		iskhakkutbilim	Olympiads (BOI19_olympiads)	C++17	44 / 100	488 ms	262144 KiB

olympiads

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int SCORE = 100;
int n, k, c;
 
int a[501][7];
//int dp[501][7][6*SCORE + 5];
 
 
main(){
   ios::sync_with_stdio(0);
   cin.tie(0); cout.tie(0);
	cin >> n >> k >> c;
	for(int i = 1;i <= n; i++){
		for(int j = 1;j <= k; j++){
			cin >> a[i][j];
		}
	}
	vector<int> sc;
	if(k ==2){
		for(int i = 1;i <= n; i++){
			for(int j = i + 1;j <= n; j++){
				sc.push_back(max(a[i][1], a[j][1]) + max(a[j][2], a[i][2]));
			}
		}
	}else if(k == 1){
		for(int i = 1;i <= n; i++){
			sc.push_back(a[i][1]);
		}
	}else if(k == 6){
		for(int i = 1;i <= n; i++){
			for(int j = i + 1;j <= n; j++){
				for(int ii = j + 1; ii <= n;ii++){
					for(int jj = ii+1; jj <= n; jj++){
						for(int iii = jj + 1; iii <= n; iii++){
							for(int jjj = iii + 1; jjj <= n; jjj++){
								int sum = 0;
								for(int kk = 1;kk <= k; kk++){
									sum+= max({a[i][kk], a[j][kk], a[ii][kk], a[jj][kk], a[iii][kk], a[jjj][kk]});
								}
								sc.push_back(sum);
							}
						}
					}
				}
			}
		}
	}else if(k == 5){
		for(int i = 1;i <= n; i++){
			for(int j = i + 1;j <= n; j++){
				for(int ii = j + 1; ii <= n;ii++){
					for(int jj = ii+1; jj <= n; jj++){
						for(int iii = jj + 1; iii <= n; iii++){
								int sum = 0;
								for(int kk = 1;kk <= k; kk++){
									sum+= max({a[i][kk], a[j][kk], a[ii][kk], a[jj][kk], a[iii][kk]});
								}
								sc.push_back(sum);
							}
						
					}
				}
			}
		}
	}else if(k == 4){
		for(int i = 1;i <= n; i++){
			for(int j = i + 1;j <= n; j++){
				for(int ii = j + 1; ii <= n;ii++){
					for(int jj = ii+1; jj <= n; jj++){
						int sum = 0;
						for(int kk = 1;kk <= k; kk++){
							sum+= max({a[i][kk], a[j][kk], a[ii][kk], a[jj][kk]});
						}
						sc.push_back(sum);
					}
				}
			}
		}
	}else{
		for(int i = 1;i <= n; i++){
			for(int j = i + 1;j <= n; j++){
				for(int ii = j + 1; ii <= n;ii++){
					int sum = 0;
					for(int kk = 1;kk <= k; kk++){
						sum+= max({a[i][kk], a[j][kk], a[ii][kk]  });
					}
					sc.push_back(sum);	
				}
			}
		}
	}
	sort(all(sc));
	reverse(all(sc));
//	for(auto x : sc) cout << x << ' ';
//	cout << '\n';
	cout << sc[c-1];
	return 0;
}

Compilation message (stderr)

olympiads.cpp:15:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   15 | main(){
      | ^~~~

• Subtask 1: 13 / 13
• Subtask 2: 31 / 31
• Subtask 3: 0 / 24
• Subtask 4: 0 / 32