Submission #586478

#	Time	Username	Problem	Language	Result	Execution time	Memory
586478		hibiki	Journey (NOI18_journey)	C++11	100 / 100	61 ms	22216 KiB

journey

#include<bits/stdc++.h>
using namespace std;

#define MX 500000001
#define pb push_back
#define f first
#define s second

int n,m,h;
vector<pair<int,int> > v[10005];
int dp[10005][505];

int main()
{
    scanf("%d %d %d",&n,&m,&h);
    for(int i = 0; i < n - 1; i++)
    {
        for(int j = 0; j < h; j++)
        {
            int a,b;
            scanf("%d %d",&a,&b);
            if(i >= a) continue;
            v[i].pb({a,b});
        }
    }
    memset(dp, 0, sizeof(dp));
    for(auto go: v[0])
        dp[go.f][min(503,go.s)]++;
    for(int i = 1; i < n; i++)
    {
        for(int j = 1; j < m; j++)
        {
            dp[i][j] += dp[i][j - 1];
            dp[i][j] = min(dp[i][j], MX);
        }
        for(auto go: v[i])
        {
            for(int j = 0; j + go.s < m; j++)
            {
                dp[go.f][j + go.s] += dp[i][j];
                dp[go.f][j + go.s] = min(dp[go.f][j + go.s], MX);
            }
        }
    }
    for(int i = 0; i < m; i++)
        printf("%d ",dp[n - 1][i]);
    return 0;
}

Compilation message (stderr)

journey.cpp: In function 'int main()':
journey.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d %d %d",&n,&m,&h);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
journey.cpp:21:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |             scanf("%d %d",&a,&b);
      |             ~~~~~^~~~~~~~~~~~~~~

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