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Submission #1019165

# Submission time Handle Problem Language Result Execution time Memory
1019165 2024-07-10T14:25:48 Z ttamx Pyramid Base (IOI08_pyramid_base) C++17
90 / 100
 5000 ms 91944 KB 
#include<bits/stdc++.h>

using namespace std;

const int N=1e6+5;
const int K=1<<21;
const int INF=INT_MAX/2;

int n,m,b,p;
vector<tuple<int,int,int>> add[N],del[N];

struct SegTree{
    int t[K],lz[K];
    void apply(int i,int v){
        t[i]+=v,lz[i]+=v;
    }
    void push(int i){
        apply(i*2,lz[i]);
        apply(i*2+1,lz[i]);
        lz[i]=0;
    }
    void build(){
        for(int i=0;i<K;i++)t[i]=lz[i]=0;
    }
    void update(int l,int r,int i,int x,int y,int v){
        if(y<l||r<x)return;
        if(x<=l&&r<=y)return apply(i,v);
        int m=(l+r)/2;
        push(i);
        update(l,m,i*2,x,y,v);
        update(m+1,r,i*2+1,x,y,v);
        t[i]=min(t[i*2],t[i*2+1]);
    }
    void update(int x,int y,int v){
        update(1,n,1,x,y,v);
    }
    int query(int l,int r,int i,int x,int y){
        if(y<l||r<x)return INF;
        if(x<=l&&r<=y)return t[i];
        int m=(l+r)/2;
        push(i);
        return min(query(l,m,i*2,x,y),query(m+1,r,i*2+1,x,y));
    }
    int query(int x,int y){
        return query(1,n,1,x,y);
    }
}seg;

bool check(int k){
    seg.build();
    seg.update(1,k-1,INF);
    for(int i=1;i<k;i++)for(auto [l,r,v]:add[i])seg.update(max(l,k),r+k-1,v);
    for(int i=k;i<=m;i++){
        for(auto [l,r,v]:add[i])seg.update(max(l,k),r+k-1,v);
        for(auto [l,r,v]:del[i-k])seg.update(max(l,k),r+k-1,-v);
        if(seg.t[1]<=b)return true;
    }
    return false;
}

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> m >> n >> b >> p;
    for(int i=0;i<p;i++){
        int x1,y1,x2,y2,c;
        cin >> x1 >> y1 >> x2 >> y2 >> c;
        add[x1].emplace_back(y1,y2,c);
        del[x2].emplace_back(y1,y2,c);
    }
    int l=0,r=min(n,m);
    while(l<r){
        int m=(l+r+1)/2;
        if(check(m))l=m;
        else r=m-1;
    }
    cout << l;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 63576 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 63832 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 63832 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 63836 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 63836 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 63836 KB Output is correct
2 Correct 86 ms 63896 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 63832 KB Output is correct
2 Correct 58 ms 63836 KB Output is correct

Subtask #8
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 64084 KB Output is correct
2 Correct 47 ms 64092 KB Output is correct
3 Correct 33 ms 64092 KB Output is correct

Subtask #9
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 64600 KB Output is correct
2 Correct 174 ms 65112 KB Output is correct
3 Correct 146 ms 64980 KB Output is correct

Subtask #10
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 169 ms 65028 KB Output is correct
2 Correct 28 ms 65404 KB Output is correct
3 Correct 77 ms 64860 KB Output is correct
4 Correct 230 ms 65624 KB Output is correct

Subtask #11
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 280 ms 65368 KB Output is correct
2 Correct 480 ms 65884 KB Output is correct
3 Correct 157 ms 66128 KB Output is correct

Subtask #12
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 285 ms 65624 KB Output is correct
2 Correct 611 ms 66392 KB Output is correct
3 Correct 540 ms 66392 KB Output is correct
4 Correct 616 ms 66396 KB Output is correct
5 Correct 610 ms 66392 KB Output is correct
6 Correct 188 ms 66396 KB Output is correct

Subtask #13
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2650 ms 75092 KB Output is correct
2 Correct 436 ms 74324 KB Output is correct

Subtask #14
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3825 ms 80276 KB Output is correct
2 Correct 3741 ms 84036 KB Output is correct
3 Correct 1416 ms 78940 KB Output is correct

Subtask #15
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4644 ms 85076 KB Output is correct
2 Execution timed out 5040 ms 91944 KB Time limit exceeded
3 Halted 0 ms 0 KB -