oj.uz

Submission #200421

# Submission time Handle Problem Language Result Execution time Memory
200421 2020-02-06T19:46:32 Z wilwxk Journey (NOI18_journey) C++14
20 / 100
 5 ms 632 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int MAXN = 1e4+5;
const int MAXM = 405;
const ll MOD = 500000001LL;
ll dp[MAXN][MAXM];
vector<pair<int, int> > g[MAXN];
int n, m, x;

int main() {
	scanf("%d %d %d", &n, &m, &x);
	for(int i = 0; i < n-1; i ++) {
		for(int j = 0; j < x; j++) {
			int a, b; scanf("%d %d", &a, &b);
			g[a].push_back({i, b});
		}
	}

	dp[0][0] = 1;
	for(int i = 1; i < n; i++) {
		for(int j = 0; j < m; j++) {
			for(auto edge : g[i]) {
				int k = j-edge.second;
				if(k < 0) continue;
				dp[i][j] += dp[edge.first][k];
				if(dp[i][j] > MOD) break;
			}
			// printf("%d %d >> %lld\n", i, j, dp[i][j]);
		}
		for(int j = 1; j < m; j++) dp[i][j] += dp[i][j-1], dp[i][j] = min(dp[i][j], MOD+10);
	}

	for(int i = 0; i < m; i++) printf("%lld ", min(dp[n-1][i], MOD));
}

Compilation message

journey.cpp: In function 'int main()':
journey.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d", &n, &m, &x);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
journey.cpp:16:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int a, b; scanf("%d %d", &a, &b);
              ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 632 KB Output is correct
2 Correct 5 ms 504 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 632 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 632 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Incorrect 5 ms 632 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 632 KB Output is correct
2 Correct 5 ms 504 KB Output is correct
3 Incorrect 5 ms 632 KB Output isn't correct
4 Halted 0 ms 0 KB -