Submission #1328037

#	Time	Username	Problem	Language	Result	Execution time	Memory
1328037		edo	말 (IOI15_horses)	C++20	Compilation error	0 ms	0 KiB

horses

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#include "horses.h"

const int nax = 524288;
const int md = 1e9 + 7;
using ld = long double;
int n;

struct Node {
    ld logX;
    ld mxlog;
    ll prodX;
    ll best;
};

int curX[nax];
int curY[nax];
Node tree[nax << 1];

Node merge(const Node& L, const Node& R) {
    Node res;
    res.logX = L.logX + R.logX;
    res.prodX = (L.prodX * R.prodX) % md;

    if(L.mxlog >= L.logX + R.mxlog) {
        res.mxlog = L.mxlog;
        res.best = L.best;
    }
    else {
        res.mxlog = L.logX + R.mxlog;
        res.best = (L.prodX * R.best) % md;
    }
    return res;
}

void upd(int i) {
    int p = i + nax;
    tree[p].logX = log((ld)curX[i]);
    tree[p].mxlog = tree[p].logX + log((ld)curY[i]);
    tree[p].prodX = curX[i];
    tree[p].best = (1LL * curX[i] * curY[i]) % md;

    for(p >>= 1; p; p >>= 1) {
        tree[p] = merge(tree[p << 1], tree[p << 1 | 1]);
    }
}

int init(int N, int X[], int Y[]) {
    n = N;
    
    for(int i = 0; i < nax; i++) {
        if(i < n) {
            curX[i] = X[i];
            curY[i] = Y[i];
        } 
        else 
            curX[i] = curY = 1; 
    }

    for(int i = 0; i < nax; i++) {
        int p = nax + i;
        tree[p].logX = log((ld)curX[i]);
        ld valY = (i < n) ? log((ld)curY[i]) : -1e18; 
        tree[p].mxlog = tree[p].logX + valY;
        tree[p].prodX = curX[i];
        tree[p].best = (1LL * curX[i] * curY[i]) % md;
    }

    for(int i = nax - 1; i > 0; i--) {
        tree[i] = merge(tree[i << 1], tree[i << 1 | 1]);
    }

    return (int)tree[1].best;
}

int updateX(int pos, int val) {    
    curX[pos] = val;
    upd(pos);
    return (int)tree[1].best;
}

int updateY(int pos, int val) {
    curY[pos] = val;
    upd(pos);
    return (int)tree[1].best;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:61:28: error: incompatible types in assignment of 'int' to 'int [524288]'
   61 |             curX[i] = curY = 1;
      |                       ~~~~~^~~