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Submission #55432

# Submission time Handle Problem Language Result Execution time Memory
55432 2018-07-07T09:35:12 Z 노영훈(#1544) Toilets (JOI16_toilets) C++11
36 / 100
 5 ms 860 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int MX=200010, inf=2e9;

ll n;
int m;

void NOPE(){
    cout<<-1;
    exit(0);
}

int main(){
    ios::sync_with_stdio(0); cin.tie(0);
    cin>>n>>m;


    ll mcnt=0, mn=0, mtmp=0, sum=0;

    char S[MX]; int k;
    for(int i=1; i<=m; i++){
        cin>>(S+1)>>k;

        ll now=0, low=0, cnt=0, tmp=0;
        for(int i=1; S[i]!=0; i++){
            if(S[i]=='M'){
                cnt++;
                now++;
            }
            else{
                now--;
            }
            if(low>=now) low=now, tmp=cnt;
        }

        if(now>0){
            ll gmin=sum+low;
            if(mn>=gmin){
                mn=gmin;
                mtmp=mcnt+tmp;
            }
        }
        else{
            ll gmin=sum+now*(k-1)+low;
            if(mn>=gmin){
                mn=gmin;
                mtmp=mcnt+cnt*(k-1)+tmp;
            }
        }
        sum+=now*k;
        mcnt+=cnt*k;
        
        // cout<<now<<' '<<low<<' '<<cnt<<' '<<tmp<<'\n';
        if(cnt>n) NOPE();
    }

    if(n<mcnt) NOPE();

    ll need=max(0LL, -1-(n-mcnt)*2-mn);
    if(need>mcnt-mtmp) NOPE();
    else cout<<need;


    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 564 KB Output is correct
4 Correct 2 ms 564 KB Output is correct
5 Correct 3 ms 564 KB Output is correct
6 Correct 3 ms 564 KB Output is correct
7 Correct 2 ms 564 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 3 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 2 ms 740 KB Output is correct
19 Correct 2 ms 740 KB Output is correct
20 Correct 3 ms 740 KB Output is correct
21 Correct 2 ms 740 KB Output is correct
22 Correct 2 ms 740 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 564 KB Output is correct
4 Correct 2 ms 564 KB Output is correct
5 Correct 3 ms 564 KB Output is correct
6 Correct 3 ms 564 KB Output is correct
7 Correct 2 ms 564 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 3 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 2 ms 740 KB Output is correct
19 Correct 2 ms 740 KB Output is correct
20 Correct 3 ms 740 KB Output is correct
21 Correct 2 ms 740 KB Output is correct
22 Correct 2 ms 740 KB Output is correct
23 Correct 4 ms 764 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 3 ms 768 KB Output is correct
26 Correct 3 ms 768 KB Output is correct
27 Correct 4 ms 768 KB Output is correct
28 Correct 5 ms 820 KB Output is correct
29 Correct 5 ms 820 KB Output is correct
30 Correct 4 ms 820 KB Output is correct
31 Correct 4 ms 820 KB Output is correct
32 Correct 4 ms 820 KB Output is correct
33 Correct 3 ms 860 KB Output is correct
34 Correct 3 ms 860 KB Output is correct
35 Correct 4 ms 860 KB Output is correct
36 Correct 4 ms 860 KB Output is correct
37 Correct 3 ms 860 KB Output is correct
38 Correct 4 ms 860 KB Output is correct
39 Correct 3 ms 860 KB Output is correct
40 Correct 4 ms 860 KB Output is correct

Subtask #3
0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 564 KB Output is correct
4 Correct 2 ms 564 KB Output is correct
5 Correct 3 ms 564 KB Output is correct
6 Correct 3 ms 564 KB Output is correct
7 Correct 2 ms 564 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 3 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 3 ms 620 KB Output is correct
18 Correct 2 ms 740 KB Output is correct
19 Correct 2 ms 740 KB Output is correct
20 Correct 3 ms 740 KB Output is correct
21 Correct 2 ms 740 KB Output is correct
22 Correct 2 ms 740 KB Output is correct
23 Correct 4 ms 764 KB Output is correct
24 Correct 3 ms 764 KB Output is correct
25 Correct 3 ms 768 KB Output is correct
26 Correct 3 ms 768 KB Output is correct
27 Correct 4 ms 768 KB Output is correct
28 Correct 5 ms 820 KB Output is correct
29 Correct 5 ms 820 KB Output is correct
30 Correct 4 ms 820 KB Output is correct
31 Correct 4 ms 820 KB Output is correct
32 Correct 4 ms 820 KB Output is correct
33 Correct 3 ms 860 KB Output is correct
34 Correct 3 ms 860 KB Output is correct
35 Correct 4 ms 860 KB Output is correct
36 Correct 4 ms 860 KB Output is correct
37 Correct 3 ms 860 KB Output is correct
38 Correct 4 ms 860 KB Output is correct
39 Correct 3 ms 860 KB Output is correct
40 Correct 4 ms 860 KB Output is correct
41 Incorrect 4 ms 860 KB Output isn't correct
42 Halted 0 ms 0 KB -