#include <bits/stdc++.h>
#define eb emplace_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define svec(x) sort(x.begin(), x.end())
#define press(x) x.erase(unique(x.begin(), x.end()), x.end())
#define lb(x, v) lower_bound(x.begin(), x.end(), v)
#define ub(x, v) upper_bound(x.begin(), x.end(), v)
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
typedef pair<int, LL> pil;
typedef pair<LL, int> pli;
const LL llinf=2000000000000000000;
const LL mod1=1000000007;
const LL mod2=998244353;
const int inf=2000000000;
int m;
LL n, len[100010], lsum[100010], cnt[100010], sum[100010], rpt[100010], ans;
string str[100010];
int main(){
scanf("%lld %d", &n, &m);
for(int i=1; i<=m; i++){
cin>>str[i];
scanf("%lld", &rpt[i]);
len[i]=(LL)str[i].size();
for(int j=0; j<str[i].size(); j++){
if(str[i][j]=='F')cnt[i]++;
}
sum[i]=sum[i-1]+cnt[i]*rpt[i];
lsum[i]=lsum[i-1]+len[i]*rpt[i];
}
if(sum[m]<n)return !printf("-1");
LL num=sum[m]-n;
for(int i=1; i<=m; i++){
LL temp=sum[i-1];
for(int j=0; j<str[i].size(); j++){
LL nw=lsum[i-1]+j;
if(str[i][j]=='F'){
ans=max(ans, 2*(temp-num)-nw);
temp++;
}
}
temp=sum[i-1]+cnt[i]*(rpt[i]-1);
for(int j=0; j<str[i].size(); j++){
LL nw=lsum[i-1]+len[i]*(rpt[i]-1)+j;
if(str[i][j]=='F'){
ans=max(ans, 2*(temp-num)-nw);
temp++;
}
}
}
printf("%lld", ans);
}
Compilation message
toilets.cpp: In function 'int main()':
toilets.cpp:32:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0; j<str[i].size(); j++){
~^~~~~~~~~~~~~~
toilets.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0; j<str[i].size(); j++){
~^~~~~~~~~~~~~~
toilets.cpp:50:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0; j<str[i].size(); j++){
~^~~~~~~~~~~~~~
toilets.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %d", &n, &m);
~~~~~^~~~~~~~~~~~~~~~~~~
toilets.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &rpt[i]);
~~~~~^~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 3 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 4 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 5 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 6 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 7 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 8 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 10 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 11 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 12 |
Correct |
3 ms |
3584 KB |
Output is correct |
| 13 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 14 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 15 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 16 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 21 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 22 |
Correct |
2 ms |
3456 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 3 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 4 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 5 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 6 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 7 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 8 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 10 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 11 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 12 |
Correct |
3 ms |
3584 KB |
Output is correct |
| 13 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 14 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 15 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 16 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 21 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 22 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 23 |
Correct |
14 ms |
3856 KB |
Output is correct |
| 24 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 25 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 26 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 27 |
Correct |
12 ms |
3876 KB |
Output is correct |
| 28 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 29 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 30 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 31 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 32 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 33 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 34 |
Correct |
13 ms |
3856 KB |
Output is correct |
| 35 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 36 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 37 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 38 |
Correct |
13 ms |
3856 KB |
Output is correct |
| 39 |
Correct |
14 ms |
3856 KB |
Output is correct |
| 40 |
Correct |
15 ms |
3856 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 2 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 3 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 4 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 5 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 6 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 7 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 8 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 10 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 11 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 12 |
Correct |
3 ms |
3584 KB |
Output is correct |
| 13 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 14 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 15 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 16 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 17 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 18 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 19 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 20 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 21 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 22 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 23 |
Correct |
14 ms |
3856 KB |
Output is correct |
| 24 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 25 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 26 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 27 |
Correct |
12 ms |
3876 KB |
Output is correct |
| 28 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 29 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 30 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 31 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 32 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 33 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 34 |
Correct |
13 ms |
3856 KB |
Output is correct |
| 35 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 36 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 37 |
Correct |
12 ms |
3856 KB |
Output is correct |
| 38 |
Correct |
13 ms |
3856 KB |
Output is correct |
| 39 |
Correct |
14 ms |
3856 KB |
Output is correct |
| 40 |
Correct |
15 ms |
3856 KB |
Output is correct |
| 41 |
Correct |
52 ms |
7416 KB |
Output is correct |
| 42 |
Correct |
51 ms |
7288 KB |
Output is correct |
| 43 |
Correct |
3 ms |
3456 KB |
Output is correct |
| 44 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 45 |
Correct |
2 ms |
3456 KB |
Output is correct |
| 46 |
Correct |
22 ms |
4224 KB |
Output is correct |
| 47 |
Correct |
15 ms |
3840 KB |
Output is correct |
| 48 |
Correct |
16 ms |
3712 KB |
Output is correct |
| 49 |
Correct |
14 ms |
3840 KB |
Output is correct |
| 50 |
Correct |
14 ms |
3840 KB |
Output is correct |
| 51 |
Correct |
20 ms |
4352 KB |
Output is correct |
| 52 |
Correct |
51 ms |
7416 KB |
Output is correct |
| 53 |
Correct |
49 ms |
7396 KB |
Output is correct |
| 54 |
Correct |
45 ms |
7288 KB |
Output is correct |
| 55 |
Correct |
13 ms |
3840 KB |
Output is correct |
| 56 |
Correct |
14 ms |
3840 KB |
Output is correct |
