oj.uz

답안 #407215

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
407215 2021-05-18T16:17:47 Z LptN21 Topovi (COCI15_topovi) C++14
120 / 120
 1274 ms 33484 KB 
#include <bits/stdc++.h>
using namespace std;
#define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
#define FF first
#define SS second
#define pb push_back
#define sz(x) (int)x.size()
#define oo 1e9
#define eps 1e-9
#define PI acos(-1.0)
#define lb lower_bound
#define ub upper_bound
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> ii;
const int N = 1e5+7, M=13+7;
const int MOD = 1e9+7;

int n, m, k, t;
ll ans=0;
map<ii, int> rook;
map<int, int> rx, cx;
map<int, int> slc, slr;

void mv(int r, int c, int v) {
    ans-=t-slr[cx[c]], ans-=t-slc[rx[r]];
    if(rx[r]!=cx[c]) ans+=1;
    slr[rx[r]]--, slc[cx[c]]--;
    rx[r]^=v, cx[c]^=v;
    slr[rx[r]]++, slc[cx[c]]++;
    ans+=t-slr[cx[c]], ans+=t-slc[rx[r]];
    if(rx[r]!=cx[c]) ans-=1;
    rook[ii(r, c)]^=v;
}

signed main() {
    //freopen("test.inp", "r", stdin);
    //freopen("test.out", "w", stdout);
    //fastIO;
    scanf("%d%d%d", &t, &n, &m);
    slr[0]=slc[0]=t;
    int x, y, u, v;
    for(int i=1;i<=n;mv(x, y, k), i++)
        scanf("%d%d%d", &x, &y, &k);
    for(int i=1;i<=m;i++) {
        scanf("%d%d%d%d", &x, &y, &u, &v);
        k=rook[ii(x, y)];
        mv(x, y, k), mv(u, v, k);
        printf("%lld\n", ans);
    }
    return 0;
}
/* stuff you should look for
    - int overflow, array bounds
    - special cases (n=1?)
    - do smth instead of do nothing and stay organized
    - WRITE STUFF DOWN
    - DONT JUST STICK ON ONE APPROACH
*/

Compilation message

topovi.cpp: In function 'int main()':
topovi.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     scanf("%d%d%d", &t, &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:44:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |         scanf("%d%d%d", &x, &y, &k);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~
topovi.cpp:46:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |         scanf("%d%d%d%d", &x, &y, &u, &v);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 137 ms 5316 KB Output is correct
7 Correct 108 ms 4652 KB Output is correct
8 Correct 84 ms 3888 KB Output is correct
9 Correct 88 ms 3984 KB Output is correct
10 Correct 97 ms 4140 KB Output is correct
11 Correct 1207 ms 33424 KB Output is correct
12 Correct 1232 ms 33400 KB Output is correct
13 Correct 1194 ms 33312 KB Output is correct
14 Correct 1194 ms 33348 KB Output is correct
15 Correct 1197 ms 33428 KB Output is correct
16 Correct 1215 ms 33484 KB Output is correct
17 Correct 1209 ms 33372 KB Output is correct
18 Correct 1212 ms 33416 KB Output is correct
19 Correct 1274 ms 33324 KB Output is correct
20 Correct 1184 ms 33392 KB Output is correct