Submission #230557

#	Time	Username	Problem	Language	Result	Execution time	Memory
230557		alireza_kaviani	Topovi (COCI15_topovi)	C++17	120 / 120	878 ms	39928 KiB

topovi

/* Generated by powerful Codeforces Tool
 * You can download the binary file in here https://github.com/xalanq/cf-tool (Windows, macOS, Linux)
 * Author: alireza_kaviani
 * Time: 2020-05-10 15:06:09
**/
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pll;

#define all(x)                      (x).begin(),(x).end()
#define Sort(x)                     sort(all((x)))
#define X                           first
#define Y                           second
#define sep                         ' '
#define endl                        '\n'
#define SZ(x)                       ll(x.size())

ll poww(ll a, ll b, ll md) {
    return (!b ? 1 : (b & 1 ? a * poww(a * a % md, b / 2, md) % md : poww(a * a % md, b / 2, md) % md));
}

const ll MAXN = 1e6 + 10;
const ll LOG = 22;
const ll INF = 8e18;
const ll MOD = 1e9 + 7; // 998244353; // 1e9 + 9;

// row : n , col : m
ll n , k , p , ans;
map<pair<int , int> , int> val;
map<int , int> col , row , cntCol , cntRow;

void modifyCol(int c , int x){
    ans += cntRow[c] * x;
    cntCol[c] += x;
}

void modifyRow(int r , int x){
    ans += cntCol[r] * x;
    cntRow[r] += x;
}

void insert(int r , int c , int x){ 
    int R = (row[r] ^= x) , C = (col[c] ^= x); val[{r , c}] ^= x;
    modifyRow(R ^ x , -1) ; modifyCol(C ^ x , -1);
    modifyRow(R , +1) ; modifyCol(C , +1);
}

int main() {
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

    scanf("%lld%lld%lld" , &n , &k , &p); ans = n * n;
    cntCol[0] = cntRow[0] = n;
    for(int i = 1 , r , c , x ; i <= k ; i++){
        scanf("%d%d%d" , &r , &c , &x);
        insert(r , c , x);
    }

    for(int i = 1 , r1 , c1 , r2 , c2 ; i <= p ; i++){
        scanf("%d%d%d%d" , &r1 , &c1 , &r2 , &c2);
        ll v = val[{r1 , c1}];
        insert(r1 , c1 , v);
        insert(r2 , c2 , v);
        printf("%lld\n" , n * n - ans);
    }

    return 0;
}
/*

*/

Compilation message (stderr)

topovi.cpp: In function 'int main()':
topovi.cpp:60:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld%lld" , &n , &k , &p); ans = n * n;
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:63:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d" , &r , &c , &x);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d" , &r1 , &c1 , &r2 , &c2);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 120 / 120