Submission #933732

#	Time	Username	Problem	Language	Result	Execution time	Memory
933732		modwwe	Boat (APIO16_boat)	C++17	0 / 100	5 ms	604 KiB

boat

 //#pragma GCC optimize("Ofast,unroll-loops")
  //  #pragma GCC target("avx,avx2,sse,sse2")
#include<bits/stdc++.h>
    #define int long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".ans","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int mod2=1e9+7;
const int  mod1=998244353;
struct ib
{
    int a;
    int b;
};
struct icd
{
    int a,b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
int n,m,s2,s4,s3,sf,k,r,dem=0,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,l;
int  i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
//fin(task),fou(task);
#endif
    NHP
//modwwe
    phongbeo(),down
    checktime
}
int dp[1000001];
ib a[501];
void phongbeo()
{
     cin>>n;
      for(int i=1;i<=n;i++)
      {
           cin>>a[i].a>>a[i].b;
           s4=max(s4,a[i].b);
      }
      for(int i=1;i<=n;i++)
      {s2=1;
      for(int j=1;j<=a[i].a-1;j++)
        s2+=dp[j],s2=s2%mod2;
         for(int j=a[i].a;j<=a[i].b;j++)
         { s7=dp[j];
             dp[j]+=s2;
             dp[j]=dp[j]%mod2;
            s2+=s7;
            s2=s2%mod2;
         }
      }
      s3=0;
          for(int j=1;j<=s4;j++){
            s3+=dp[j];
            s3=s3%mod2;
            }
      cout<<s3;
}

Compilation message (stderr)

boat.cpp:39:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   39 | main()
      | ^~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42