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Submission #1092604

# Submission time Handle Problem Language Result Execution time Memory
1092604 2024-09-24T14:47:58 Z damoon Pyramid Base (IOI08_pyramid_base) C++14
63 / 100
 5000 ms 173996 KB 
#include<bits/stdc++.h>
using namespace std;

#define ll long long

typedef pair<int,int> pii;
typedef pair<int,pii> pip;
typedef pair<pii,int> ppi;
#define f first
#define s second

#define all(x) x.begin(),x.end()
#define unicorn(x) x.resize(unique(x.begin(),x.end())-x.begin())

#define pb(x) push_back(x);
#define pp() pop_back();

#define lc 2*id+0
#define rc 2*id+1

const int LC = 1e6+2, L = 4e5+2;
const ll inf = 1e10;
int n,m,p,b;

vector<ppi> add[LC],er[LC];

random_device device;
default_random_engine rng(device());
#define randt(a,b) uniform_int_distribution<int64_t>(a,b)(rng)

void pr(int* vv,int l,int r){for(int i=l;i<r;i++){cout<<vv[i]<<" ";}cout<<endl;}
void prv(vector<int> vv){for(auto i:vv){cout<<i<<" ";}cout<<endl;}
void prl(long long* vv,int l,int r){for(int i=l;i<r;i++){cout<<vv[i]<<" ";}cout<<endl;}
void prvl(vector<long long> vv){for(auto i:vv){cout<<i<<" ";}cout<<endl;}
void prp(pii* vv,int l,int r){for(int i=l;i<r;i++){cout<<i<<": "<<vv[i].f<<" , "<<vv[i].s<<" / ";}cout<<endl;}

struct node{
    ll lazy, mn;
    node(){
        lazy = mn = 0;
    }
}t[LC*6];

struct sagi{
    inline void spread(int id){
        t[lc].lazy += t[id].lazy;
        t[rc].lazy += t[id].lazy;
        t[id].mn += t[id].lazy;
        t[id].lazy = 0;
    }
    inline void update(int id,int l,int r,int l2,int r2,ll x){
        spread(id);
        if(l==l2 and r==r2){
            t[id].lazy += x;
            return;
        }
        int mid = (l2+r2)>>1;
        if(l<mid)
            update(lc,l,min(r,mid),l2,mid,x);
        if(r>mid)
            update(rc,max(l,mid),r,mid,r2,x);
        spread(lc);
        spread(rc);
        t[id].mn = min(t[lc].mn, t[rc].mn);
    }

    inline ll get(int id,int l,int r,int l2,int r2){
        spread(id);
        if(l==l2 and r==r2){
            return t[id].mn;
        }
        int mid = (l2+r2)>>1;
        ll ans = inf;
        if(l<mid)
            ans = min(ans, get(lc,l,min(r,mid),l2,mid));
        if(r>mid)
            ans = min(ans, get(rc,max(l,mid),r,mid,r2));
        return ans;
    }
};

int main(){
    //ofstream cout ("out.txt");
    //ifstream cin ("in.txt");

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    scanf("%d %d",&n,&m);
    scanf("%d",&b);
    scanf("%d",&p);
    for(int i=0;i<p;i++){
        int x1,y1,x2,y2,pr;
        scanf("%d %d %d %d %d",&x1,&y1,&x2,&y2,&pr);
        ppi x = ppi(pii(y1,y2),pr);
        add[x1].pb(x);
        er[x2].pb(x);
    }

    int l=0,r=1e6+1;
    while(r-l>1){
        int mid = (l+r)>>1;
        if(mid > n or mid > m){
            r = mid;
            continue;
        }
        sagi seg;
        for(int i=1;i<LC*6;i++){
            t[i].lazy = t[i].mn = 0;
        }
        seg.update(1,1,mid,1,m+1,inf);
        ll ans = inf;
        for(int i=1;i<=n;i++){
            if(i>mid){
                ans = min(ans,t[1].mn);
            }
            for(auto j:add[i]){
                seg.update(1,max(j.f.f,mid),min(j.f.s+mid,m+1),1,m+1,j.s);
            }

            for(auto j:er[max(i-mid,0)]){
                seg.update(1,max(j.f.f,mid),min(j.f.s+mid,m+1),1,m+1,-j.s);
            }

            if(i>mid){
                ans = min(ans,t[1].mn);
            }
        }
        if(ans <= b)
            l = mid;
        else
            r = mid;
    }
    cout<<l;
}

Compilation message

pyramid_base.cpp: In function 'int main()':
pyramid_base.cpp:90:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
pyramid_base.cpp:91:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |     scanf("%d",&b);
      |     ~~~~~^~~~~~~~~
pyramid_base.cpp:92:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   92 |     scanf("%d",&p);
      |     ~~~~~^~~~~~~~~
pyramid_base.cpp:95:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |         scanf("%d %d %d %d %d",&x1,&y1,&x2,&y2,&pr);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 141184 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 141140 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 141260 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 141392 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 141416 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 141400 KB Output is correct
2 Correct 239 ms 141392 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 141396 KB Output is correct
2 Correct 233 ms 141396 KB Output is correct

Subtask #8
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 141648 KB Output is correct
2 Correct 168 ms 141700 KB Output is correct
3 Correct 163 ms 141580 KB Output is correct

Subtask #9
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 308 ms 142392 KB Output is correct
2 Correct 375 ms 142420 KB Output is correct
3 Correct 342 ms 142504 KB Output is correct

Subtask #10
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 486 ms 142932 KB Output is correct
2 Correct 115 ms 142932 KB Output is correct
3 Incorrect 173 ms 142512 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #11
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 679 ms 143440 KB Output is correct
2 Correct 837 ms 143188 KB Output is correct
3 Correct 416 ms 143648 KB Output is correct

Subtask #12
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 629 ms 143912 KB Output is correct
2 Correct 1284 ms 143844 KB Output is correct
3 Correct 1216 ms 143776 KB Output is correct
4 Correct 1103 ms 144172 KB Output is correct
5 Correct 1177 ms 143696 KB Output is correct
6 Correct 426 ms 144124 KB Output is correct

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5053 ms 158292 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #14
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5050 ms 166456 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #15
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5066 ms 173996 KB Time limit exceeded
2 Halted 0 ms 0 KB -