Submission #137726

#	Time	Username	Problem	Language	Result	Execution time	Memory
137726		SirCeness	Journey (NOI18_journey)	C++14	20 / 100	2 ms	760 KiB

journey

#include <bits/stdc++.h>

using namespace std;
#define mod 1000000007
#define mp make_pair
#define pb push_back
#define bas(x) #x << ": " << x << " "
#define prarr(x, n) cout << #x << ": "; for (int qsd = 0; qsd < n; qsd++) cout << x[qsd] << " "; cout << endl;
#define prarrv(x) cout << #x << ": "; for (int qsd = 0; qsd < (int)x.size(); qsd++) cout << x[qsd] << " "; cout << endl;
#define ppair(x) "(" << x.first << ", " << x.second << ")"
#define inside sl<=l&&r<=sr
#define outside sr<l||r<sl

typedef long long ll;
ll inf = 500000001;

int n, m, h;
vector<pair<ll, ll> > ways[10004]; 
ll dp[10004][404];
ll pre[10004][404];

int main(){
	//freopen("in", "r", stdin);
	//freopen("out", "w", stdout);

	cin >> n >> m >> h;
	for (int i = 0; i < n-1; i++){
		for (int j = 0; j < h; j++){
			ll a, b;
			cin >> a >> b;
			ways[i].pb(mp(a, b));
		}
	}


	for (int i = 0; i < m; i++) dp[n-1][i] = 1;
	for (int i = 0; i < m; i++) pre[n-1][i] = i+1;
	for (int i = n-2; i >= 0; i--){
		for (int d = 0; d < m; d++){
			for (int j = 0; j < h; j++){
				if (ways[i][j].first <= i) continue;
				if (d-ways[i][j].second < 0) continue;
				dp[i][d] += pre[ways[i][j].first][d-ways[i][j].second];
				dp[i][d] = min(dp[i][d], inf);
			}
		}
		ll sum = 0;
		for (int it = 0; it < m; it++){
			sum += dp[i][it];
			sum = min(inf, sum);
			pre[i][it] = sum; 
		}
	}

	/*for (int i = 0; i < n; i++){
		for (int j = 0; j < m; j++){
			cout << dp[i][j] << " ";
		}
		cout << endl;
	}
	cout << endl;
*/
	vector<ll> ans(m, 0);

	for (int j = 0; j < h; j++){
		for (int d = 0; d < m; d++){
			if (d-ways[0][j].second >= 0) ans[d] += dp[ways[0][j].first][d-ways[0][j].second];
			ans[d] = min(ans[d], inf);
		}
	}

	for (int i = 0; i < ans.size(); i++) cout << ans[i] << " "; cout << endl;

}

Compilation message (stderr)

journey.cpp: In function 'int main()':
journey.cpp:72:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < ans.size(); i++) cout << ans[i] << " "; cout << endl;
                  ~~^~~~~~~~~~~~
journey.cpp:72:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i = 0; i < ans.size(); i++) cout << ans[i] << " "; cout << endl;
  ^~~
journey.cpp:72:62: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for (int i = 0; i < ans.size(); i++) cout << ans[i] << " "; cout << endl;
                                                              ^~~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 23
• Subtask 3: 0 / 26
• Subtask 4: 0 / 31