Submission #141113

#	Time	Username	Problem	Language	Result	Execution time	Memory
141113		tincamatei	Journey (NOI18_journey)	C++14	100 / 100	145 ms	11128 KiB

journey

#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 10000;
const int MAX_M = 400;
const int INF = 500000001;
vector<pair<int, int> > graph[MAX_N];

int dp[MAX_M][MAX_N];
int sp[MAX_M][MAX_N];

int main() {
	int n, m, h;
	
	scanf("%d%d%d", &n, &m, &h);

	for(int i = 0; i < n - 1; ++i) {
		for(int j = 0; j < h; ++j) {
			int to, sl;

			scanf("%d%d", &to, &sl);
			if(i < to)
				graph[to].push_back({i, sl});
		}
	}

	for(int i = 0; i < m; ++i)
		sp[i][0] = 1;
	dp[0][0] = 1;
	for(int i = 0; i < m; ++i)
		for(int j = 1; j < n; ++j) {
			for(auto it: graph[j])
				if(it.second <= i)
					dp[i][j] = min(INF, dp[i][j] + sp[i - it.second][it.first]);
			
			if(i > 0)
				sp[i][j] = sp[i - 1][j];
			sp[i][j] = min(INF, sp[i][j] + dp[i][j]);
		}
	
	for(int i = 0; i < m; ++i)
		printf("%d ", dp[i][n - 1]);
	return 0;
}

Compilation message (stderr)

journey.cpp: In function 'int main()':
journey.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &m, &h);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
journey.cpp:22:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d", &to, &sl);
    ~~~~~^~~~~~~~~~~~~~~~~~

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