Submission #1108757

#	Time	Username	Problem	Language	Result	Execution time	Memory
1108757		modwwe	Fun Palace (CCO18_fun)	C++17	25 / 25	51 ms	157204 KiB

Main

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC optimize("conserve-stack")
#include<bits/stdc++.h>
#define int long long
#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#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".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar

inline int scan()
{
    char c = getchar_unlocked();
    int x = 0;
    while (c < '0' || c > '9')
    {
        c = getchar_unlocked();
    }
    while (c >= '0' && c <= '9')
    {
        x = (x << 1) + (x << 3) + c - '0';
        c = getchar_unlocked();
    }
    return x;
}

void phongbeo();
const int inf = 1e9;
const ll mod2 = 1e9 + 7;
const int  mod1 = 998244353;
const ll base=67;
int add(int x,int y)
{
    if(x+y>=mod2) x-=mod2;
    if(x+y<0) x+=mod2;
    return x+y;
}
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a, b, c;
};
struct id
{
    int a, b, c, d;
};
struct ie
{
    int a, b, c, d, e;

};

int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, mid, l2, r2, center;
int  i, s10, s12,k1,k2,k3,s11,t,lim,w,l,r;
int kk;
int el = 19;
main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
        fou(task);
    }
    NHP
    /// cin>>s1;
//    modwwe
    phongbeo(),down
    //checktime
}
int dp[1001][20001];
int dp2[20001];
int a[1001];
int b[1001];
void phongbeo()
{
    cin>>n;
    cin>>lim;
    m=20000;
    for(int i=1; i<n; i++)
        cin>>a[i]>>b[i];
    /// neu no di qua duoc minh xep cho no di qua san
    for(int i=1; i<=n; i++)
        for(int j=0; j<=m; j++)
            dp[i][j]=-inf;
    for(int i=0; i<lim; i++)
        dp[1][i]=0;
    ///2 2 5
    for(int i=1; i<n; i++)
    {
        ///-> if choose =ai so next =0
        for(int j=m-1; j>=0; --j)
            dp[i][j]=max(dp[i][j+1],dp[i][j]);
        for(int j=0; j<=m; j++)
        {
            if(j>=a[i]+b[i]) dp[i+1][j]=max(dp[i+1][j],dp[i][j]);
            else  if(j<a[i])
            {
                dp[i+1][b[i]-1]=max(dp[i+1][b[i]-1],dp[i][j]+j);
                dp[i+1][j+b[i]]=max(dp[i+1][j+b[i]],dp[i][j]);
                /// ko dc di quas
            }
            else  dp[i+1][j-a[i]]=max(dp[i+1][j-a[i]],dp[i][j]+a[i]);
        }
    }
    for(int j=0; j<=m; j++)
    {
        s4=max(dp[n][j]+j,s4);
    }
    cout<<s4;
}

Compilation message (stderr)

Main.cpp:75:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   75 | main()
      | ^~~~
Main.cpp: In function 'int main()':
Main.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:79:9: note: in expansion of macro 'fin'
   79 |         fin(task);
      |         ^~~
Main.cpp:14:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 | #define fou(x) freopen(x".out","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.cpp:80:9: note: in expansion of macro 'fou'
   80 |         fou(task);
      |         ^~~

• Subtask 1: 3 / 3
• Subtask 2: 5 / 5
• Subtask 3: 12 / 12
• Subtask 4: 5 / 5