답안 #40122

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
40122 2018-01-27T12:11:43 Z Chomtana Retro (COCI17_retro) C++11
35 / 100
500 ms 10836 KB
/*
This is a dag graph -> DP!!! let see ... it move only in one direction from bottom to top
Graph will be DAG if it move in one direction in all plane (dimension-1 dimension)
*/

#include <bits/stdc++.h>

#define for1(a,b,c) for(int (a)=(b);(a)<(c);(a)++)
#define for2(i,a,b) for(int (i)=(a);((a)<=(b)?(i)<=(b):(i)>=(b));(i)+=((a)<=(b)?1:-1))
#define until(x) while(!(x))
#define all(x) x.begin(),x.end()
#define mp make_pair
#define subfunc(ret,name,args) function<ret args> name; name = [&] args

//#define max(a,b,c) max(max(a,b),c)

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<pair<int,int>,int> piii;
typedef vector<int> vi;

class type{
    public:
    ll s1 = 0;
    ll s2 = 0;
    ll s3 = 0;
    ll s4 = 0;
    ll s5 = 0;
    int len = -1;
    
    type(int len) {
        this->len = len;
    }
    
    type() {
        
    }
    
    type(int len,int s1,int s2,int s3,int s4) {
        this->len = len;
        this->s1 = s1;
        this->s2 = s2;
        this->s3 = s3;
        this->s4 = s4;
        this->s5 = s5;
    }
};

int nr,nc;

char data[305][305];
//int dp[305][305][305];
type dpbu[305][305];
type dpbubf[305][305];
int sr,sc;

type maxa(type a,type b) {
    if (a.len>b.len) return a;
    else if (a.len<b.len) return b;
    
    if (a.s1>b.s1) return a;
    else if (a.s1<b.s1) return b;
    
    if (a.s2>b.s2) return a;
    else if (a.s2<b.s2) return b;
    
    if (a.s3>b.s3) return a;
    else if (a.s3<b.s3) return b;
    
    if (a.s4>b.s4) return a;
    else if (a.s4<b.s4) return b;

    if (a.s5>b.s5) return a;
    else if (a.s5<b.s5) return b;

    return a;
}

type maxa(type a,type b,type c) {
    return maxa(maxa(a,b),c);
}

type add(type a,int r,int c) {
    if (a.len<0) return a;
    
    if (a.len<61) {
        if (data[r][c]=='(') {
            a.s1 |= (1<<a.len);
        } else {
            a.s1 &= ~(1<<a.len);
        }
    } else if (a.len<121) {
        if (data[r][c]=='(') {
            a.s2 |= (1<<(a.len-61));
        } else {
            a.s2 &= ~(1<<(a.len-61));
        }
    } else if (a.len<181) {
        if (data[r][c]=='(') {
            a.s3 |= (1<<(a.len-121));
        } else {
            a.s3 &= ~(1<<(a.len-121));
        }
    } else if (a.len<241) {
        if (data[r][c]=='(') {
            a.s4 |= (1<<(a.len-181));
        } else {
            a.s4 &= ~(1<<(a.len-181));
        }
    } else if (a.len<301) {
        if (data[r][c]=='(') {
            a.s5 |= (1<<(a.len-241));
        } else {
            a.s5 &= ~(1<<(a.len-241));
        }
    }
    
    a.len++;
    return a;
}

//bu must start at index 1 because it will out of border
type bu(int r,int c,int lv) {
    if (r<=0 || c<=0) {
        if (lv==0) {
            return type(0);
        } else {
            return type(-999999);
        }
    }
    if (data[r-1][c-1]=='*') {
        return type(-999999);
    }
    
    if (data[r-1][c-1]!='(' && data[r-1][c-1]!=')') {
        return maxa(dpbubf[c-1][lv],dpbubf[c+1][lv],dpbubf[c][lv]);
    } else {
        if (data[r-1][c-1]=='(') {
            return maxa(add(dpbubf[c-1][lv+1],r-1,c-1),add(dpbubf[c+1][lv+1],r-1,c-1),add(dpbubf[c][lv+1],r-1,c-1));
        } else {
            if (lv>0) {
                return maxa(add(dpbubf[c-1][lv-1],r-1,c-1),add(dpbubf[c+1][lv-1],r-1,c-1),add(dpbubf[c][lv-1],r-1,c-1));
            } else {
                return type(-999999);
            }
        }
    }
}

/*int f(int r,int c,int lv) {
    if (r<0 || c<0) {
        if (lv==0) {
            return 0;
        } else {
            return -999999;
        }
    }
    if (data[r][c]=='*') {
        return -999999;
    }
    
    if (dp[r][c][lv]!=-1) return dp[r][c][lv];
    
    if (data[r][c]!='(' && data[r][c]!=')') {
        return dp[r][c][lv] = max(f(r-1,c-1,lv),f(r-1,c+1,lv),f(r-1,c,lv));
    } else {
        if (data[r][c]=='(') {
            return dp[r][c][lv] = max(f(r-1,c-1,lv+1)+1,f(r-1,c+1,lv+1)+1,f(r-1,c,lv+1)+1);
        } else {
            if (lv>0) {
                return dp[r][c][lv] = max(f(r-1,c-1,lv-1)+1,f(r-1,c+1,lv-1)+1,f(r-1,c,lv-1)+1);
            } else {
                return dp[r][c][lv] = -999999;
            }
        }
    }
}*/

int main() {
    //ios::sync_with_stdio(false);
    //memset(dp,-1,sizeof(dp));
    memset(dpbu,-1,sizeof(dpbu));
    
    cout<<fixed;
    cin>>nr>>nc;
    for1(i,0,nr) {
        scanf("%s",data[i]);
    }
    
    for1(i,0,nr) {
        for1(j,0,nc) {
            if (data[i][j]=='M') {
                sr = i; sc=j;
            }
        }
    }
    
    for1(j,0,nc+2) {
        for1(k,0,305) {
            dpbubf[j][k] = bu(0,j,k);
            //if (k<=10) cerr<<dpbubf[j][k]<<' ';
        }
        //cerr<<endl;
    }
    //cerr<<endl;
    
    for(int i = 1;i<=sr+1;i++) {
        for1(j,0,nc+2) {
            for1(k,0,nr+1) {
                dpbu[j][k] = bu(i,j,k);
            }
        }
        
        for1(j,0,nc+2) {
            for1(k,0,nr+1) {
                //if (k<=10) cerr<<dpbu[j][k].len<<' ';
                dpbubf[j][k] = dpbu[j][k];
            }
            //cerr<<endl;
        }
        //cerr<<endl;
    }
    
    type &res = dpbu[sc+1][0];
    //int res = f(sr,sc,0);
    
    /*f(sr,sc,0);
    for(int i = 0;i<=sr;i++) {
        for1(j,0,nc) {
            for1(k,0,305) {
                if (k<=10) cerr<<dp[i][j][k]<<' ';
            }
            cerr<<endl;
        }
        cerr<<endl;
    }*/
    
    
    cout<<res.len<<endl;
    stack<char> resS;
    for1(i,0,res.len) {
        if (i<61) {
            if (res.s1&(1<<(i%61))) {
                resS.push('(');
            } else {
                resS.push(')');
            }
        } else if (i<121) {
            if (res.s2&(1<<(i%61))) {
                resS.push('(');
            } else {
                resS.push(')');
            }
        } else if (i<181) {
            if (res.s3&(1<<(i%61))) {
                resS.push('(');
            } else {
                resS.push(')');
            }
        } else if (i<241) {
            if (res.s4&(1<<(i%61))) {
                resS.push('(');
            } else {
                resS.push(')');
            }
        } else if (i<301) {
            if (res.s5&(1<<(i%61))) {
                resS.push('(');
            } else {
                resS.push(')');
            }
        }
    }
    while (!resS.empty()) {
        printf("%c",resS.top()); resS.pop();
    }
    return 0;
}

Compilation message

retro.cpp: In function 'int main()':
retro.cpp:190:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",data[i]);
                            ^
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10836 KB Output is correct
2 Correct 0 ms 10836 KB Output is correct
3 Correct 0 ms 10836 KB Output is correct
4 Correct 0 ms 10836 KB Output is correct
5 Correct 5 ms 10836 KB Output is correct
6 Partially correct 29 ms 10836 KB Partially correct
7 Partially correct 36 ms 10836 KB Partially correct
8 Partially correct 18 ms 10836 KB Partially correct
9 Partially correct 46 ms 10836 KB Partially correct
10 Partially correct 58 ms 10836 KB Partially correct
11 Execution timed out 500 ms 10836 KB Execution timed out
12 Execution timed out 500 ms 10836 KB Execution timed out
13 Execution timed out 500 ms 10836 KB Execution timed out
14 Execution timed out 500 ms 10836 KB Execution timed out
15 Execution timed out 500 ms 10836 KB Execution timed out
16 Execution timed out 500 ms 10836 KB Execution timed out
17 Execution timed out 500 ms 10836 KB Execution timed out
18 Execution timed out 500 ms 10836 KB Execution timed out
19 Execution timed out 500 ms 10836 KB Execution timed out
20 Execution timed out 500 ms 10836 KB Execution timed out