oj.uz

Submission #39624

# Submission time Handle Problem Language Result Execution time Memory
39624 2018-01-16T19:13:13 Z Hassoony Retro (COCI17_retro) C++14
29 / 100
 500 ms 117360 KB 
#include<bits/stdc++.h>
#define F first
#define S second
using namespace std;
typedef long long ll;
const ll mod=1e9+7;
const int inf=(1<<30);
const int MX=309;
char a[MX][MX];
int n,m,dp[MX][MX][MX];
int DP(int x,int y,int open){
    if(y<=0||y>m||open<0)return -inf;
    if(x==0){
        if(open)return -inf;
        return 0;
    }
    if(a[x][y]=='*'){
        if(open)return -inf;
        return 0;
    }
    int &ret=dp[x][y][open];if(ret!=-1)return ret;
    vector<pair<char,int> >v;
    v.push_back({a[x-1][y-1],y-1});
    v.push_back({a[x-1][y],y});
    v.push_back({a[x-1][y+1],y+1});
    sort(v.begin(),v.end());
    for(auto pp:v){
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        if(pp.first=='('||pp.first==')')ret=max(ret,DP(x-1,pp.second,open1)+add);
        ret=max(ret,DP(x-1,pp.second,open));
    }
    return ret;
}
void FDP(int x,int y,int open){
    if(y<=0||y>m||open<0)return;
    if(x==0)return;
    if(a[x][y]=='*')return;
    int &ret=dp[x][y][open];
    vector<pair<char,int> >v;
    v.push_back({a[x-1][y-1],y-1});
    v.push_back({a[x-1][y],y});
    v.push_back({a[x-1][y+1],y+1});
    sort(v.begin(),v.end());
    for(auto pp:v){
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        if(pp.first=='('||pp.first==')')if(ret==DP(x-1,pp.second,open1)+add){
            printf("%c",pp.first);
            FDP(x-1,pp.second,open1);
            return;
        }
        if(ret==DP(x-1,pp.second,open)){
            FDP(x-1,pp.second,open);
            return;
        }
    }
}
int main(){
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
        }
    }
    memset(dp,-1,sizeof(dp));
    int j;
    for(int i=1;i<=m;i++){
        if(a[n][i]=='M')j=i;
    }
    cout<<DP(n,j,0)<<endl;
    FDP(n,j,0);
    puts("");
}

Compilation message

retro.cpp: In function 'int main()':
retro.cpp:62:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
retro.cpp:73:19: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<DP(n,j,0)<<endl;
                   ^

Subtask #1
29.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 13 ms 117360 KB Partially correct
2 Correct 6 ms 117360 KB Output is correct
3 Partially correct 19 ms 117360 KB Partially correct
4 Partially correct 13 ms 117360 KB Partially correct
5 Correct 0 ms 117360 KB Output is correct
6 Partially correct 26 ms 117360 KB Partially correct
7 Partially correct 46 ms 117360 KB Partially correct
8 Partially correct 59 ms 117360 KB Partially correct
9 Correct 233 ms 117360 KB Output is correct
10 Partially correct 166 ms 117360 KB Partially correct
11 Execution timed out 500 ms 117360 KB Execution timed out
12 Execution timed out 500 ms 117360 KB Execution timed out
13 Execution timed out 500 ms 117360 KB Execution timed out
14 Execution timed out 500 ms 117360 KB Execution timed out
15 Execution timed out 500 ms 117360 KB Execution timed out
16 Execution timed out 500 ms 117360 KB Execution timed out
17 Execution timed out 500 ms 117360 KB Execution timed out
18 Execution timed out 500 ms 117360 KB Execution timed out
19 Execution timed out 500 ms 117360 KB Execution timed out
20 Execution timed out 500 ms 117360 KB Execution timed out