Submission #376224

#	Time	Username	Problem	Language	Result	Execution time	Memory
376224		wiwiho	Bitaro, who Leaps through Time (JOI19_timeleap)	C++14	4 / 100	3 ms	620 KiB

timeleap

#include <bits/stdc++.h>
 
#define eb emplace_back
#define printv(a, b) { \
    for(auto pv : a) b << pv << " "; \
    b << "\n"; \
}
#define mp make_pair
#define F first
#define S second
 
using namespace std;

typedef long long ll;
using pll = pair<ll, ll>;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
    int n, q;
    cin >> n >> q;
    assert(n <= 2000 && q <= 2000);

    vector<ll> l(n), r(n);
    for(int i = 1; i < n; i++) cin >> l[i] >> r[i];

    while(q--){
        int t;
        cin >> t;

        if(t == 1){
            int x, c, d;
            cin >> x >> c >> d;
            l[x] = c;
            r[x] = d;
            continue;
        }

        ll a, b, c, d;
        cin >> a >> b >> c >> d;
        //cerr << a << " " << c << "\n";

        ll ans = 0;
        ll now = b;

        if(a < c){
            for(int i = a; i < c; i++){
                now = max(now, l[i]);
                if(now >= r[i]){
                    ans += now - r[i] + 1;
                    now = r[i] - 1;
                }
                now++;
                //cerr << i << " " << now << "\n";
            }
        }
        else{
            for(int i = a - 1; i >= c; i--){
                now = max(now, l[i]);
                if(now >= r[i]){
                    ans += now - r[i] + 1;
                    now = r[i] - 1;
                }
                now++;
                //cerr << i << " " << now << "\n";
            }
        }
        if(now > d) ans += now - d;
        cout << ans << "\n";

    }
 
    return 0;
}

• Subtask 1: 4 / 4
• Subtask 2: 0 / 30
• Subtask 3: 0 / 66