Submission #130401

# Submission time Handle Problem Language Result Execution time Memory
130401 2019-07-15T06:44:19 Z 송준혁(#3152) Dominance (CEOI08_dominance) C++14
100 / 100
18 ms 632 KB
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;

int N;
LL W, B;
LL X[3030], Y[3030], R[3030], C[3030], cnt[6060];
vector<LL> Ocom, Ecom;

struct Data{
    LL x, y1, y2, v;
    bool operator<(const Data &r)const{
        return x < r.x;
    }
};
vector<Data> V;

inline int ocomp(LL k){return lower_bound(Ocom.begin(), Ocom.end(), k)-Ocom.begin();}
inline int ecomp(LL k){return lower_bound(Ecom.begin(), Ecom.end(), k)-Ecom.begin();}

int main(){
    scanf("%*d %*d");
    scanf("%d", &N);
    for (int i=1; i<=N; i++){
        char ch;
        scanf(" %c %lld %lld %lld", &ch, &X[i], &Y[i], &R[i]);
        if (ch == 'W') C[i] = 1;
        else C[i] = -1;
        if ((X[i]+Y[i]+R[i]) & 1){
            Ocom.push_back(X[i]+Y[i]-R[i]);
            Ocom.push_back(X[i]+Y[i]+R[i]+2);
            Ecom.push_back(X[i]+Y[i]-R[i]+1);
            Ecom.push_back(X[i]+Y[i]+R[i]+1);
        }
        else{
            Ecom.push_back(X[i]+Y[i]-R[i]);
            Ecom.push_back(X[i]+Y[i]+R[i]+2);
            Ocom.push_back(X[i]+Y[i]-R[i]+1);
            Ocom.push_back(X[i]+Y[i]+R[i]+1);
        }
    }
    sort(Ocom.begin(), Ocom.end());
    Ocom.erase(unique(Ocom.begin(), Ocom.end()), Ocom.end());
    sort(Ecom.begin(), Ecom.end());
    Ecom.erase(unique(Ecom.begin(), Ecom.end()), Ecom.end());
    for (int i=1; i<=N; i++){
        if ((X[i]+Y[i]+R[i]) & 1){
            V.push_back((Data){X[i]-Y[i]-R[i], ocomp(X[i]+Y[i]-R[i]), ocomp(X[i]+Y[i]+R[i]+2), C[i]});
            V.push_back((Data){X[i]-Y[i]+R[i]+2, ocomp(X[i]+Y[i]-R[i]), ocomp(X[i]+Y[i]+R[i]+2), -C[i]});
        }
        else{
            V.push_back((Data){X[i]-Y[i]-R[i]+1, ocomp(X[i]+Y[i]-R[i]+1), ocomp(X[i]+Y[i]+R[i]+1), C[i]});
            V.push_back((Data){X[i]-Y[i]+R[i]+1, ocomp(X[i]+Y[i]-R[i]+1), ocomp(X[i]+Y[i]+R[i]+1), -C[i]});
        }
    }
    sort(V.begin(), V.end());
    for (int i=0; i<(int)V.size(); i++){
        if (i > 0){
            for (int j=0; j<(int)Ocom.size()-1; j++){
                if (cnt[j] > 0) W += ((Ocom[j+1]-Ocom[j])/2) * ((V[i].x-V[i-1].x)/2);
                if (cnt[j] < 0) B += ((Ocom[j+1]-Ocom[j])/2) * ((V[i].x-V[i-1].x)/2);
            }
        }
        for (int j=V[i].y1; j<V[i].y2; j++) cnt[j] += V[i].v;
    }

    memset(cnt, 0, sizeof cnt);
    V.clear();
    for (int i=1; i<=N; i++){
        if ((X[i]+Y[i]+R[i]) & 1){
            V.push_back((Data){X[i]-Y[i]-R[i]+1, ecomp(X[i]+Y[i]-R[i]+1), ecomp(X[i]+Y[i]+R[i]+1), C[i]});
            V.push_back((Data){X[i]-Y[i]+R[i]+1, ecomp(X[i]+Y[i]-R[i]+1), ecomp(X[i]+Y[i]+R[i]+1), -C[i]});
        }
        else{
            V.push_back((Data){X[i]-Y[i]-R[i], ecomp(X[i]+Y[i]-R[i]), ecomp(X[i]+Y[i]+R[i]+2), C[i]});
            V.push_back((Data){X[i]-Y[i]+R[i]+2, ecomp(X[i]+Y[i]-R[i]), ecomp(X[i]+Y[i]+R[i]+2), -C[i]});
        }
    }
    sort(V.begin(), V.end());
    for (int i=0; i<(int)V.size(); i++){
        if (i > 0){
            for (int j=0; j<(int)Ecom.size()-1; j++){
                if (cnt[j] > 0) W += ((Ecom[j+1]-Ecom[j])/2) * ((V[i].x-V[i-1].x)/2);
                if (cnt[j] < 0) B += ((Ecom[j+1]-Ecom[j])/2) * ((V[i].x-V[i-1].x)/2);
            }
        }
        for (int j=V[i].y1; j<V[i].y2; j++) cnt[j] += V[i].v;
    }
    printf("%lld %lld\n", W, B);
    return 0;
}

Compilation message

dominance.cpp: In function 'int main()':
dominance.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%*d %*d");
     ~~~~~^~~~~~~~~~~
dominance.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
dominance.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c %lld %lld %lld", &ch, &X[i], &Y[i], &R[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 4 ms 604 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 504 KB Output is correct
4 Correct 7 ms 632 KB Output is correct
5 Correct 9 ms 632 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 6 ms 504 KB Output is correct
9 Correct 11 ms 632 KB Output is correct
10 Correct 13 ms 504 KB Output is correct
11 Correct 13 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 10 ms 504 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 18 ms 632 KB Output is correct
16 Correct 11 ms 632 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 4 ms 504 KB Output is correct
20 Correct 4 ms 376 KB Output is correct