Submission #942784

#TimeUsernameProblemLanguageResultExecution timeMemory
942784vjudge1Nicelines (RMI20_nicelines)C++17
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> #define f first #define s second #define pb push_back #define mp make_pair #define ll long long #define ldb long double #define db double #define fin(x) freopen(x,"r",stdin) #define fout(x) freopen(x,"w",stdout) #define fo(i,l,r) for(int i=(l);i<=(r);i++) #define foi(i,l,r) for(int i=(l);i>=(r);i--) #define el cout<<'\n'; #define cel cerr<<'\n'; #define all(x) x.begin(),x.end() #define ii pair<int,int> #define iii pair<int,ii> #define gb(x,i) (((x)>>(i))&1) #define mask(i) (1LL<<(i)) using namespace std; const int N=4e5+5; const int bl=350; const ll base=1e9+7; const ll inf=1e9; mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); ll Rand(ll l,ll r) { return l+(1ll*rng()*rng()%(r-l+1)+(r-l+1))%(r-l+1); } template<class X,class Y>bool maximize(X &a,Y b) { if(a<b) return a=b,true; return false; } template<class X,class Y>bool minimize(X &a, Y b) { if(a>b) return a=b,true; return false; } void add(auto &a,auto b) { a+=b; if(a>=base) a-=base; if(a<0) a+=base; } int n,x,nxt[N][20],q; ll sum[N]; unordered_map<ll,int>cc; void solve() { int l,r,ans=0; cin>>l>>r,l--; foi(i,19,0) if(nxt[l][i] and nxt[l][i]<=r) ans+=mask(i),l=nxt[l][i]; cout<<ans,el } int main() { #define task "SUM0" if(fopen(task".inp","r")) { fin(task".inp"); fout(task".out"); } srand(time(NULL)); ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); cin>>n; fo(i,1,n) cin>>x,sum[i]=sum[i-1]+x; nxt[n+1][0]=n+1; foi(i,n,0) { if(cc.count(sum[i])) nxt[i][0]=min(nxt[i+1][0],cc[sum[i]]); else nxt[i][0]=nxt[i+1][0]; cc[sum[i]]=i; } fo(x,1,log2(n+1)) fo(i,0,n-mask(x)+1) { if(!nxt[i][x-1] or nxt[i][x-1]>n) nxt[i][x]=n+1; else nxt[i][x]=nxt[nxt[i][x-1]][x-1]; } cin>>q; while(q--) solve(); }

Compilation message (stderr)

nicelines.cpp:40:10: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   40 | void add(auto &a,auto b)
      |          ^~~~
nicelines.cpp:40:18: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   40 | void add(auto &a,auto b)
      |                  ^~~~
nicelines.cpp: In function 'int main()':
nicelines.cpp:9:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 | #define fin(x) freopen(x,"r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~
nicelines.cpp:61:9: note: in expansion of macro 'fin'
   61 |         fin(task".inp");
      |         ^~~
nicelines.cpp:10:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 | #define fout(x) freopen(x,"w",stdout)
      |                 ~~~~~~~^~~~~~~~~~~~~~
nicelines.cpp:62:9: note: in expansion of macro 'fout'
   62 |         fout(task".out");
      |         ^~~~
/usr/bin/ld: /tmp/ccI1lzoB.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccjd8ubD.o:nicelines.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccI1lzoB.o: in function `main':
grader.cpp:(.text.startup+0x68): undefined reference to `solve(int, int)'
collect2: error: ld returned 1 exit status