Submission #671874

#	Time	Username	Problem	Language	Result	Execution time	Memory
671874		Alihan_8	Trading (IZhO13_trading)	C++17	0 / 100	8 ms	19088 KiB

trading

#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
const int N = 3e5+1;
struct segTree{
    int l, val;
    segTree(int l, int val) : l(l), val(val) {}
    segTree() : segTree(0, 0) {}
};
segTree lazy[N*4];
int T[N*4];
void push(int v, int l, int r){
    if ( !lazy[v].val ) return;
    if ( l != r ) lazy[v*2] = lazy[v*2+1] = lazy[v];
    T[v] = max(T[v], lazy[v].val+l-lazy[v].l);
    lazy[v] = segTree();
}
void upd(int v, int l, int r, int tl, int tr, int val){
    push(v, l, r);
    if ( l > tr or r < tl ) return;
    if ( tl <= l and tr >= r ){
        lazy[v] = segTree(tl, val);
        push(v, l, r);
        return;
    }
    int md = (l+r)>>1;
    upd(v*2, l, md, tl, tr, val), upd(v*2+1, md+1, r, tl, tr, val);
    T[v] = max(T[v*2], T[v*2+1]);
}
int get(int v, int l, int r, int pos){
    push(v, l, r);
    if ( l == r ) return T[v];
    int md = (l+r)>>1;
    if ( pos <= md ) return get(v*2, l, md, pos);
    return get(v*2+1, md+1, r, pos);
}
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, q; cin >> n >> q;
    while ( q-- ){
        int l, r, x; cin >> l >> r >> x;
        upd(1, 1, n, l, r, x);
    }
        for ( int i = 1; i <= n; i++ ) cout << get(1, 1, n, i) << ' '; cout << ln;
    /*
    6 3
    1 4 5
    2 2 9
    1 6 6
    6 9 8 9 10 11
    */

    cout << '\n';
}

Compilation message (stderr)

trading.cpp: In function 'int main()':
trading.cpp:55:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   55 |         for ( int i = 1; i <= n; i++ ) cout << get(1, 1, n, i) << ' '; cout << ln;
      |         ^~~
trading.cpp:55:72: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   55 |         for ( int i = 1; i <= n; i++ ) cout << get(1, 1, n, i) << ' '; cout << ln;
      |                                                                        ^~~~
trading.cpp: In function 'void IO(std::string)':
trading.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trading.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100