제출 #1215371

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1215371		sasde	Jump (BOI06_jump)	C++20	70 / 100	1 ms	1352 KiB

jump

#include<bits/stdc++.h>
using namespace std;
bool M1;
#define task "aws"
#define sz(a) (int)a.size()
#define all(x) x.begin(),x.end()
#define ii pair<int,int>
#define iii pair<int,ii>
#define iv pair<ii,ii>
#define se second
#define fi first
#define ffi fi.fi
#define sfi se.fi
#define sse se.se
#define fse fi.se
#define lt(i, c, d) for(int i = c; i <= d; ++i)
#define fl(i, c, d) for(int i = d; i >= c; --i)
#define pb push_back
#define emb emplace_back
#define emf emplace_front
#define em emplace
#define look_memory cerr<<abs(&M2-&M1)/1024.0/1024<<'\n'
#define look_time   cerr << "TIME : " << clock() * 0.001 << "s" <<'\n'
const int N=1e3+5,lg=30,mod=1e9+7;
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int u,int v){
 return u+rd()%(v-u+1);
}
int dx[]={1,0,-1,0,1,1,-1,-1};
int dy[]={0,-1,0,1,1,-1,1,-1};
long long node,a[N][N],dp[N][N];
bool check(int x,int y){
    return x>=1&&x<=node&&y>=1&&y<=node;
}
bool M2;
void solve(){
    cin >> node;
    for(int i=1;i<=node;++i)for(int j=1;j<=node;++j)cin >> a[i][j];
    dp[1][1]=1;
    for(int i=1;i<=node;++i){
        for(int j=1;j<=node;++j){
            if(a[i][j]==0)continue;
            int u=i,v=j+a[i][j];
            if(check(u,v))dp[u][v]+=dp[i][j];
            u=i+a[i][j],v=j;
            if(check(u,v))dp[u][v]+=dp[i][j];
        }
    }
    // for(int i=1;i<=node;++i){
    //     for(int j=1;j<=node;++j){
    //         cerr<<dp[i][j]<<" ";
    //     }
    //     cerr<<'\n';
    // }
    cout <<dp[node][node];
}
main()
{
  srand(time(0));
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    if(fopen(task".inp","r")){
      freopen(task".inp","r",stdin);
      freopen(task".out","w",stdout);
    }
    int t=1;
 //   cin >> t;
while(t--){
    solve();cout<<'\n';
}
look_memory;
look_time;
}

컴파일 시 표준 에러 (stderr) 메시지

jump.cpp:57:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | main()
      | ^~~~
jump.cpp: In function 'int main()':
jump.cpp:64:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |       freopen(task".inp","r",stdin);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
jump.cpp:65:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |       freopen(task".out","w",stdout);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 70 / 100