oj.uz

Submission #479860

# Submission time Handle Problem Language Result Execution time Memory
479860 2021-10-13T15:42:58 Z aris12345678 Deda (COCI17_deda) C++14
120 / 140
 1000 ms 4496 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
#define X first
#define Y second

const int mxN = 200005;
const int inf = 1e9+5;
int st[4*mxN];

void update(int p, int l, int r, int i, int v) {
    if(l == r)
        st[p] = v;
    else {
        int md = (l+r)/2;
        if(i <= md)
            update(2*p, l, md, i, v);
        else
            update(2*p+1, md+1, r, i, v);
        st[p] = min(st[2*p], st[2*p+1]);
    }
}

int Min(int p, int l, int r, int i, int j) {
    if(i > r || l > j)
        return inf;
    if(i <= l && r <= j)
        return st[p];
    int md = (l+r)/2;
    return min(Min(2*p, l, md, i, j), Min(2*p+1, md+1, r, i, j));
}

inline void read(int &res){
    char c;
    while(c = getchar(), c < '0' || c > '9') {}
    res = c-'0';
    while(c = getchar(), c >= '0' && c <= '9')
        res = 10*res+c-'0';
}

int main() {
    int n, q;
    read(n), read(q);
    fill(st, st+4*mxN, inf);
    while(q--) {
        char type;
        int l, r;
        while(type = getchar(), type != 'M' && type != 'D') {}
        read(l), read(r);
        if(type == 'M')
            update(1, 1, n, r, l);
        else {
            int st = r, en = n, md, ans = -1;
            while(st <= en) {
                md = (st+en)/2;
                if(Min(1, 1, n, r, md) <= l)
                    ans = md, en = md-1;
                else
                    st = md+1;
            }
            printf("%d\n", ans);
        }
    }
    return 0;
}

Subtask #1
120.0 / 140.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3404 KB Output is correct
2 Correct 2 ms 3404 KB Output is correct
3 Correct 8 ms 3416 KB Output is correct
4 Execution timed out 1084 ms 4496 KB Time limit exceeded
5 Correct 616 ms 4140 KB Output is correct
6 Correct 704 ms 4380 KB Output is correct
7 Correct 787 ms 4336 KB Output is correct