Submission #1123124

#	Time	Username	Problem	Language	Result	Execution time	Memory
1123124		modwwe	스트랩 (JOI14_straps)	C++20	100 / 100	31 ms	31812 KiB

straps

#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".ans","w",stdout)
#define pb push_back
#define mask(k) (1<<k)
#define mp make_pair
#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 = 1e18;
const ll mod2 = 998244353;
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,lim,w,l,r ;
int kk;
int el = 19;
main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
        fou(task);
    }
    NHP
    /// cin>>s1;
    // modwwe
    phongbeo();
    // checktime
}
ib a[2001];
int dp[2001][2001];
bool cmp(ib a,ib b)
{
    return a.a>b.a;
}
void phongbeo()
{
    cin>>n;
    for(int i=1; i<=n; i++)
        cin>>a[i].a>>a[i].b;
    sort(a+1,a+1+n,cmp);
    for(int i=0; i<=n; i++)
        for(int j=0; j<=n; j++)
            dp[i][j]=-inf;
    dp[0][1]=0;
    for(int i=1; i<=n; i++)
    {
        for(int j=1; j<=n; j++)
            dp[i][min(j-1+a[i].a,n)]=max(dp[i][min(j-1+a[i].a,n)],dp[i-1][j]+a[i].b);
        for(int j=0; j<=n; j++)
            dp[i][j]=max(dp[i][j],dp[i-1][j]);
    }
    s4=0;
    for(int j=0; j<=n; j++)
        s4=max(s4,dp[n][j]);
    cout<<s4;
}

Compilation message (stderr)

straps.cpp:73:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   73 | main()
      | ^~~~
straps.cpp: In function 'int main()':
straps.cpp:11:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
straps.cpp:77:9: note: in expansion of macro 'fin'
   77 |         fin(task);
      |         ^~~
straps.cpp:12:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 | #define fou(x) freopen(x".ans","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
straps.cpp:78:9: note: in expansion of macro 'fou'
   78 |         fou(task);
      |         ^~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 45 / 45
• Subtask 4: 45 / 45