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Submission #202854

# Submission time Handle Problem Language Result Execution time Memory
202854 2020-02-18T08:45:48 Z Mercenary Fire (JOI20_ho_t5) C++14
100 / 100
 390 ms 59636 KB 
#include<bits/stdc++.h>
#define taskname "A"
#define pb push_back
#define mp make_pair

using namespace std;
const int maxn = 2e5 + 6;
typedef pair<int,int> ii;
typedef long long ll;

ll bit[maxn];
void U(int x , int val){
    assert(x > 0);
    for( ; x < maxn ; x += x & -x)bit[x] += val;
}
ll Q(int x){
    if(x <= 0)return 0;
    ll res = 0;
    for( ; x > 0 ; x &= x - 1)res += bit[x];
    return res;
}

int n , q;
int s[maxn] , pre[maxn] , suf[maxn];
vector<pair<ii,int>> query[maxn];
ll ans[maxn];
vector<ii> f[maxn] , g[maxn];

int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    if(fopen(taskname".INP","r")){
        freopen(taskname".INP","r",stdin);
        freopen(taskname".OUT","w",stdout);
    }
    cin >> n >> q;
    for(int i = 1 ; i <= n ; ++i){
        cin >> s[i];
    }
    for(int i = 1 ; i <= q ; ++i){
        int t , l , r;cin >> t >> l >> r;
        query[t].pb(mp(mp(l,r),i));
    }
    vector<int> val;
    for(int i = 1 ; i <= n ; ++i){
        while(val.size() && s[val.back()] <= s[i])val.pop_back();
        if(val.size())pre[i] = val.back();
        else pre[i] = 0;
        val.pb(i);
    }
    val.clear();
    for(int i = n ; i >= 1 ; --i){
        while(val.size() && s[val.back()] < s[i])val.pop_back();
        if(val.size())suf[i] = val.back();
        else suf[i] = n + 1;
        val.pb(i);
    }
    for(int i = 1 ; i <= n ; ++i){
        if(pre[i] == 0 || i - pre[i] > suf[i] - i){
            for(int j = i ; j < suf[i] ; ++j){
                f[j - i].pb(mp(j,s[i]));
                if(pre[i])f[j - pre[i]].pb(mp(j,-s[i]));
            }
        }else{
            for(int j = pre[i] + 1 ; j <= i ; ++j){
                g[i - j].pb(mp(j,s[i]));
                g[suf[i] - j].pb(mp(j,-s[i]));
            }
        }
    }
    for(int i = 0 ; i <= n ; ++i){
        for(auto & c : f[i]){
            U(c.first,c.second);
        }
        for(auto & c : query[i]){
            ans[c.second] += Q(c.first.second) - Q(c.first.first-1);
        }
    }
    fill_n(bit,maxn,0);
    for(int i = 0 ; i <= n ; ++i){
        for(auto & c : g[i]){
            U(c.first,c.second);
        }
        for(auto & c : query[i]){
            ans[c.second] += Q(c.first.second - i) - Q(c.first.first-i-1);
        }
    }
    for(int i = 1 ; i <= q ; ++i)cout << ans[i] << '\n';
}

Compilation message

ho_t5.cpp: In function 'int main()':
ho_t5.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(taskname".INP","r",stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
ho_t5.cpp:33:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(taskname".OUT","w",stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 15992 KB Output is correct
2 Correct 14 ms 15996 KB Output is correct
3 Correct 15 ms 16120 KB Output is correct
4 Correct 14 ms 15992 KB Output is correct
5 Correct 13 ms 15992 KB Output is correct
6 Correct 13 ms 15992 KB Output is correct
7 Correct 14 ms 15992 KB Output is correct
8 Correct 13 ms 16120 KB Output is correct
9 Correct 14 ms 15992 KB Output is correct
10 Correct 14 ms 15992 KB Output is correct
11 Correct 13 ms 15992 KB Output is correct
12 Correct 14 ms 16120 KB Output is correct
13 Correct 14 ms 16120 KB Output is correct
14 Correct 14 ms 15992 KB Output is correct
15 Correct 14 ms 15992 KB Output is correct
16 Correct 15 ms 15992 KB Output is correct
17 Correct 16 ms 16120 KB Output is correct
18 Correct 14 ms 16120 KB Output is correct
19 Correct 13 ms 15992 KB Output is correct
20 Correct 15 ms 15992 KB Output is correct
21 Correct 14 ms 15992 KB Output is correct
22 Correct 14 ms 15992 KB Output is correct
23 Correct 14 ms 16120 KB Output is correct
24 Correct 14 ms 15996 KB Output is correct
25 Correct 14 ms 15992 KB Output is correct
26 Correct 14 ms 15992 KB Output is correct
27 Correct 14 ms 15992 KB Output is correct
28 Correct 13 ms 15992 KB Output is correct
29 Correct 14 ms 15996 KB Output is correct
30 Correct 14 ms 15992 KB Output is correct
31 Correct 14 ms 15992 KB Output is correct
32 Correct 14 ms 16120 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 15992 KB Output is correct
2 Correct 296 ms 50976 KB Output is correct
3 Correct 301 ms 54568 KB Output is correct
4 Correct 301 ms 52352 KB Output is correct
5 Correct 296 ms 55012 KB Output is correct
6 Correct 292 ms 53012 KB Output is correct
7 Correct 290 ms 51812 KB Output is correct
8 Correct 293 ms 52816 KB Output is correct
9 Correct 298 ms 53728 KB Output is correct
10 Correct 274 ms 52196 KB Output is correct
11 Correct 291 ms 53088 KB Output is correct
12 Correct 287 ms 53964 KB Output is correct
13 Correct 275 ms 51676 KB Output is correct
14 Correct 288 ms 53944 KB Output is correct
15 Correct 298 ms 53348 KB Output is correct
16 Correct 319 ms 55904 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 15992 KB Output is correct
2 Correct 375 ms 57220 KB Output is correct
3 Correct 373 ms 55520 KB Output is correct
4 Correct 390 ms 59636 KB Output is correct
5 Correct 356 ms 52184 KB Output is correct
6 Correct 351 ms 52740 KB Output is correct
7 Correct 350 ms 53036 KB Output is correct
8 Correct 347 ms 53464 KB Output is correct
9 Correct 346 ms 52696 KB Output is correct
10 Correct 363 ms 54352 KB Output is correct
11 Correct 377 ms 56804 KB Output is correct
12 Correct 361 ms 55912 KB Output is correct
13 Correct 381 ms 55940 KB Output is correct
14 Correct 340 ms 50648 KB Output is correct
15 Correct 354 ms 53976 KB Output is correct
16 Correct 355 ms 54440 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 29628 KB Output is correct
2 Correct 219 ms 29668 KB Output is correct
3 Correct 220 ms 30184 KB Output is correct
4 Correct 222 ms 29672 KB Output is correct
5 Correct 209 ms 30056 KB Output is correct
6 Correct 208 ms 29544 KB Output is correct
7 Correct 213 ms 29932 KB Output is correct
8 Correct 225 ms 29988 KB Output is correct
9 Correct 211 ms 29804 KB Output is correct
10 Correct 212 ms 29548 KB Output is correct
11 Correct 225 ms 30056 KB Output is correct
12 Correct 219 ms 29544 KB Output is correct
13 Correct 224 ms 30056 KB Output is correct
14 Correct 222 ms 30028 KB Output is correct

Subtask #5
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 15992 KB Output is correct
2 Correct 14 ms 15996 KB Output is correct
3 Correct 15 ms 16120 KB Output is correct
4 Correct 14 ms 15992 KB Output is correct
5 Correct 13 ms 15992 KB Output is correct
6 Correct 13 ms 15992 KB Output is correct
7 Correct 14 ms 15992 KB Output is correct
8 Correct 13 ms 16120 KB Output is correct
9 Correct 14 ms 15992 KB Output is correct
10 Correct 14 ms 15992 KB Output is correct
11 Correct 13 ms 15992 KB Output is correct
12 Correct 14 ms 16120 KB Output is correct
13 Correct 14 ms 16120 KB Output is correct
14 Correct 14 ms 15992 KB Output is correct
15 Correct 14 ms 15992 KB Output is correct
16 Correct 15 ms 15992 KB Output is correct
17 Correct 16 ms 16120 KB Output is correct
18 Correct 14 ms 16120 KB Output is correct
19 Correct 13 ms 15992 KB Output is correct
20 Correct 15 ms 15992 KB Output is correct
21 Correct 14 ms 15992 KB Output is correct
22 Correct 14 ms 15992 KB Output is correct
23 Correct 14 ms 16120 KB Output is correct
24 Correct 14 ms 15996 KB Output is correct
25 Correct 14 ms 15992 KB Output is correct
26 Correct 14 ms 15992 KB Output is correct
27 Correct 14 ms 15992 KB Output is correct
28 Correct 13 ms 15992 KB Output is correct
29 Correct 14 ms 15996 KB Output is correct
30 Correct 14 ms 15992 KB Output is correct
31 Correct 14 ms 15992 KB Output is correct
32 Correct 14 ms 16120 KB Output is correct
33 Correct 369 ms 53548 KB Output is correct
34 Correct 384 ms 57048 KB Output is correct
35 Correct 389 ms 55004 KB Output is correct
36 Correct 372 ms 54104 KB Output is correct
37 Correct 351 ms 54720 KB Output is correct
38 Correct 366 ms 55768 KB Output is correct
39 Correct 369 ms 54224 KB Output is correct
40 Correct 360 ms 52056 KB Output is correct
41 Correct 355 ms 54248 KB Output is correct
42 Correct 382 ms 59608 KB Output is correct
43 Correct 314 ms 54104 KB Output is correct
44 Correct 299 ms 50524 KB Output is correct
45 Correct 291 ms 50008 KB Output is correct
46 Correct 313 ms 53464 KB Output is correct
47 Correct 312 ms 54460 KB Output is correct
48 Correct 307 ms 56528 KB Output is correct
49 Correct 310 ms 56024 KB Output is correct
50 Correct 313 ms 53208 KB Output is correct
51 Correct 312 ms 54492 KB Output is correct
52 Correct 321 ms 57364 KB Output is correct
53 Correct 307 ms 54880 KB Output is correct
54 Correct 318 ms 53240 KB Output is correct
55 Correct 326 ms 54948 KB Output is correct
56 Correct 362 ms 55256 KB Output is correct
57 Correct 308 ms 51920 KB Output is correct
58 Correct 320 ms 51928 KB Output is correct
59 Correct 296 ms 50976 KB Output is correct
60 Correct 301 ms 54568 KB Output is correct
61 Correct 301 ms 52352 KB Output is correct
62 Correct 296 ms 55012 KB Output is correct
63 Correct 292 ms 53012 KB Output is correct
64 Correct 290 ms 51812 KB Output is correct
65 Correct 293 ms 52816 KB Output is correct
66 Correct 298 ms 53728 KB Output is correct
67 Correct 274 ms 52196 KB Output is correct
68 Correct 291 ms 53088 KB Output is correct
69 Correct 287 ms 53964 KB Output is correct
70 Correct 275 ms 51676 KB Output is correct
71 Correct 288 ms 53944 KB Output is correct
72 Correct 298 ms 53348 KB Output is correct
73 Correct 319 ms 55904 KB Output is correct
74 Correct 375 ms 57220 KB Output is correct
75 Correct 373 ms 55520 KB Output is correct
76 Correct 390 ms 59636 KB Output is correct
77 Correct 356 ms 52184 KB Output is correct
78 Correct 351 ms 52740 KB Output is correct
79 Correct 350 ms 53036 KB Output is correct
80 Correct 347 ms 53464 KB Output is correct
81 Correct 346 ms 52696 KB Output is correct
82 Correct 363 ms 54352 KB Output is correct
83 Correct 377 ms 56804 KB Output is correct
84 Correct 361 ms 55912 KB Output is correct
85 Correct 381 ms 55940 KB Output is correct
86 Correct 340 ms 50648 KB Output is correct
87 Correct 354 ms 53976 KB Output is correct
88 Correct 355 ms 54440 KB Output is correct
89 Correct 217 ms 29628 KB Output is correct
90 Correct 219 ms 29668 KB Output is correct
91 Correct 220 ms 30184 KB Output is correct
92 Correct 222 ms 29672 KB Output is correct
93 Correct 209 ms 30056 KB Output is correct
94 Correct 208 ms 29544 KB Output is correct
95 Correct 213 ms 29932 KB Output is correct
96 Correct 225 ms 29988 KB Output is correct
97 Correct 211 ms 29804 KB Output is correct
98 Correct 212 ms 29548 KB Output is correct
99 Correct 225 ms 30056 KB Output is correct
100 Correct 219 ms 29544 KB Output is correct
101 Correct 224 ms 30056 KB Output is correct
102 Correct 222 ms 30028 KB Output is correct