Submission #170166

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
170166	2019-12-24 06:34:37	arnold518	Street Lamps (APIO19_street_lamps)	C++14	100 / 100	4769 ms	428604 KiB

street_lamps

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 3e5;
int N, Q, A[MAXN+10];
set<int> S, E;
pii range(int x) { return pii(*(--S.upper_bound(x)), *E.lower_bound(x)); }
pll operator + (const pll &p, const pll &q) { return pll(p.first+q.first, p.second+q.second); }
struct Node1
{
    pll val;
    Node1 *lc, *rc;
    Node1() : lc(NULL), rc(NULL) {}
};
Node1 *tree[MAXN+10];
void update1(Node1 *node, int tl, int tr, int x, pll val)
{
    node->val=node->val+val;
    if(tl==tr) return;
    int mid=tl+tr>>1;
    if(x<=mid)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

street_lamps.cpp: In function 'void update1(Node1*, int, int, int, pll)':
street_lamps.cpp:29:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=tl+tr>>1;
             ~~^~~
street_lamps.cpp: In function 'pll query1(Node1*, int, int, int, int)':
street_lamps.cpp:46:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid=tl+tr>>1;
             ~~^~~
street_lamps.cpp: In function 'void update2(int, int, pll)':
street_lamps.cpp:55:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j; y=N-y+1;
            ^
street_lamps.cpp: In function 'pll query2(int, int)':
street_lamps.cpp:61:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
street_lamps.cpp: In function 'int main()':
street_lamps.cpp:69:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
street_lamps.cpp:71:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &Q);
     ~~~~~^~~~~~~~~~~~~~~~
street_lamps.cpp:72:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(i=1; i<=N; i++) scanf("%1d", &A[i]);
                         ~~~~~^~~~~~~~~~~~~~
street_lamps.cpp:86:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s", st);
         ~~~~~^~~~~~~~~~
street_lamps.cpp:89:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &a);
             ~~~~~^~~~~~~~~~
street_lamps.cpp:155:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d", &a, &b); b--;
             ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20