Submission #383574

#	Time	Username	Problem	Language	Result	Execution time	Memory
383574		Keshi	Wombats (IOI13_wombats)	C++17	55 / 100	20097 ms	17332 KiB

wombats

//In the name of God
#include <bits/stdc++.h>
#include "wombats.h"
using namespace std;

typedef int ll;
typedef pair<ll, ll> pll;

const ll maxn = 5010;
const ll maxm = 210;
const ll mod = 1e9 + 7;
const ll inf = 1e9;

#define fast_io ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io freopen("input.txt", "r+", stdin);freopen("output.txt", "w+", stdout);
#define pb push_back
#define Mp make_pair
#define F first
#define S second
#define Sz(x) ll((x).size())
#define all(x) (x).begin(), (x).end()

ll r, c;
ll h[maxn][maxm], v[maxn][maxm];
ll dis[maxm][maxm], dl[maxm], dr[maxm];

void solve(){
	for(ll i = 0; i < c; i++){
		fill(dis[i], dis[i] + c, inf);
		dis[i][i] = 0;
		for(ll o = 0; o < r; o++){
			for(ll j = 0; j < c; j++){
				dl[j] = dis[i][j];
				if(j) dl[j] = min(dl[j], dl[j - 1] + h[o][j - 1]);
			}
			for(ll j = c; j--;){
				dr[j] = dis[i][j];
				if(j + 1 < c) dr[j] = min(dr[j], dr[j + 1] + h[o][j]);
			}
			for(ll j = 0; j < c; j++){
				dis[i][j] = min(dl[j], dr[j]) + v[o][j];
			}
		}
	}
}


void init(int R, int C, int H[5000][200], int V[5000][200]) {
    r = R;
	c = C;
	for(ll i = 0; i < r; i++){
		for(ll j = 0; j < c - 1; j++){
			h[i][j] = H[i][j];
		}
	}
	for(ll i = 0; i < r - 1; i++){
		for(ll j = 0; j < c; j++){
			v[i][j] = V[i][j];
		}
	}
	solve();
}

void changeH(int P, int Q, int W) {
    h[P][Q] = W;
	solve();
}

void changeV(int P, int Q, int W) {
    v[P][Q] = W;
	solve();
}

int escape(int V1, int V2) {
    return dis[V1][V2];
}

/*int main(){
    fast_io;

	cin >> r >> c;
	for(ll i = 0; i < r; i++){
		for(ll j = 0; j < c - 1; j++){
			cin >> h[i][j];
		}
	}
	for(ll i = 0; i < r - 1; i++){
		for(ll j = 0; j < c; j++){
			cin >> v[i][j];
		}
	}
	solve();
	cout << escape(2, 1) << "\n";
	cout << escape(3, 3) << "\n";
	changeV(0,0,5);
	changeH(1,1,6);
	cout << escape(2, 1) << "\n";



    return 0;
}*/

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 16 / 16
• Subtask 4: 18 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 24