Submission #246228

#	Time	Username	Problem	Language	Result	Execution time	Memory
246228		SamAnd	Journey (NOI18_journey)	C++17	100 / 100	171 ms	25696 KiB

journey

#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define fi first
#define se second
typedef long long ll;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
mt19937 rnf(2106);
const int N = 10004, M = 402, H = 102, U = 500000001;

int n, m, q;
pair<int, int> g[N][H];

int dp[N][M];

void solv()
{
    scanf("%d%d%d", &n, &m, &q);
    for (int i = 0; i < n - 1; ++i)
    {
        for (int j = 0; j < q; ++j)
            scanf("%d%d", &g[i][j].fi, &g[i][j].se);
    }

    dp[0][0] = 1;
    for (int x = 0; x < n - 1; ++x)
    {
        for (int y = 1; y < m; ++y)
        {
            dp[x][y] += dp[x][y - 1];
            dp[x][y] = min(dp[x][y], U);
        }
        for (int y = 0; y < m; ++y)
        {
            for (int i = 0; i < q; ++i)
            {
                int h = g[x][i].fi;
                int d = g[x][i].se;
                if (h <= x)
                    continue;
                if (y + d < m)
                {
                    dp[h][y + d] += dp[x][y];
                    dp[h][y + d] = min(dp[h][y + d], U);
                }
            }
        }
    }
    for (int y = 0; y < m; ++y)
        printf("%d ", dp[n - 1][y]);
    printf("\n");
}

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    #endif // SOMETHING
    //ios_base::sync_with_stdio(false), cin.tie(0);
    solv();
    return 0;
}

//while ((double)clock() / CLOCKS_PER_SEC <= 0.9){}

Compilation message (stderr)

journey.cpp: In function 'void solv()':
journey.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &m, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
journey.cpp:24:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d", &g[i][j].fi, &g[i][j].se);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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