Submission #90894

#	Time	Username	Problem	Language	Result	Execution time	Memory
90894		Hideo	Trading (IZhO13_trading)	C++14	100 / 100	250 ms	11496 KiB

trading

#include <bits/stdc++.h>
using namespace std;
#define mk make_pair
#define pb push_back

const int N = 3e5 + 7;
const int INF = 1e9 + 7;

int lar[N], rar[N], xar[N], ans[N];
int t[4 * N];
int n, m, cx, id;

vector < pair < int , int > > v;

void upd (int v, int l, int r, int ql, int qr){
    if (t[v] == r - l + 1 || (qr < l || r < ql))
        return;
    else if (r == l){
        ans[l] = cx + l;
        t[v] = 1;
        return;
    }
    int mid = (l + r) / 2;
    upd(v + v, l, mid, ql, qr);
    upd(v + v + 1, mid + 1, r, ql, qr);
    t[v] = t[v + v] + t[v + v + 1];
}

main(){
    cin >> n >> m;
    for (int i = 1; i <= m; i++){
        scanf("%d%d%d", &lar[i], &rar[i], &xar[i]);
        v.pb(mk(xar[i] - lar[i], i));
    }
    sort (v.begin(), v.end());
    while (!v.empty()){
        id = v.back().second, cx = v.back().first;
        v.pop_back();
        upd(1, 1, n, lar[id], rar[id]);
    }
    for (int i = 1; i <= n; i++){
        printf("%d ", ans[i]);
    }
}

Compilation message (stderr)

trading.cpp:29:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
trading.cpp: In function 'int main()':
trading.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d", &lar[i], &rar[i], &xar[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100