Submission #130713

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
130713	2019-07-16 02:17:50	ae04071	Street Lamps (APIO19_street_lamps)	C++11	0 / 100	424 ms	16240 KiB

street_lamps

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#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
using pii = pair<int,int>;
int n,q,cnt[300001],l[300001][2],r[300001][2],v[300001][2];
int ans[300001];
char str[300010];
set<pair<pii,int>> tr;
struct seg_tr{
    int tr[300001];
    void upd(int cur,int val) {
        while(cur<=n) {
            tr[cur] += val;
            cur += cur & -cur;
        }
    }
    int get(int  cur) {
        int ret=0;
        while(cur) {
            ret += tr[cur];
            cur -= cur & -cur;
        }
        return ret;
    }
}st;
 
 
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Compilation message (stderr)

street_lamps.cpp: In function 'int main()':
street_lamps.cpp:61:10: 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:62:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s",str+1);
     ~~~~~^~~~~~~~~~~~
street_lamps.cpp:76:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",tmp);
         ~~~~~^~~~~~~~~~
street_lamps.cpp:78:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d",&a,&b);
             ~~~~~^~~~~~~~~~~~~~
street_lamps.cpp:88:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&a);
             ~~~~~^~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20