Submission #77348

#TimeUsernameProblemLanguageResultExecution timeMemory
77348dualityGlobal Warming (CEOI18_glo)C++11
100 / 100
68 ms2800 KiB
#define DEBUG 0 #include <bits/stdc++.h> using namespace std; #if DEBUG // basic debugging macros int __i__,__j__; #define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl #define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl #define printVar(n) cout<<#n<<": "<<n<<endl #define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl #define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;} #define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;} // advanced debugging class // debug 1,2,'A',"test"; class _Debug { public: template<typename T> _Debug& operator,(T val) { cout << val << endl; return *this; } }; #define debug _Debug(), #else #define printLine(l) #define printLine2(l,c) #define printVar(n) #define printArr(a,l) #define print2dArr(a,r,c) #define print2dArr2(a,r,c,l) #define debug #endif // define #define MAX_VAL 999999999 #define MAX_VAL_2 999999999999999999LL #define EPS 1e-6 #define mp make_pair #define pb push_back // typedef typedef unsigned int UI; typedef long long int LLI; typedef unsigned long long int ULLI; typedef unsigned short int US; typedef pair<int,int> pii; typedef pair<LLI,LLI> plli; typedef vector<int> vi; typedef vector<LLI> vlli; typedef vector<pii> vpii; typedef vector<plli> vplli; // ---------- END OF TEMPLATE ---------- int t[200000]; vi v[2]; int main() { int i; int n,x; scanf("%d %d",&n,&x); for (i = 0; i < n; i++) scanf("%d",&t[i]); int ans = 0; v[0].pb(t[0]),v[1].pb(t[0]); for (i = 1; i < n; i++) { int p0 = lower_bound(v[0].begin(),v[0].end(),t[i])-v[0].begin(); if (p0 == v[0].size()) v[0].pb(t[i]); else v[0][p0] = t[i]; int p1 = lower_bound(v[1].begin(),v[1].end(),t[i]+x)-v[1].begin(); if (p1 == v[1].size()) v[1].pb(t[i]+x); else v[1][p1] = t[i]+x; if ((p0 >= v[1].size()) || (v[0][p0] < v[1][p0])) { if (p0 >= v[1].size()) v[1].pb(0); v[1][p0] = v[0][p0]; } } printf("%d\n",(int) v[1].size()); return 0; }

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:70:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (p0 == v[0].size()) v[0].pb(t[i]);
             ~~~^~~~~~~~~~~~~~
glo.cpp:73:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (p1 == v[1].size()) v[1].pb(t[i]+x);
             ~~~^~~~~~~~~~~~~~
glo.cpp:75:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if ((p0 >= v[1].size()) || (v[0][p0] < v[1][p0])) {
              ~~~^~~~~~~~~~~~~~
glo.cpp:76:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if (p0 >= v[1].size()) v[1].pb(0);
                 ~~~^~~~~~~~~~~~~~
glo.cpp:66:9: warning: unused variable 'ans' [-Wunused-variable]
     int ans = 0;
         ^~~
glo.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&x);
     ~~~~~^~~~~~~~~~~~~~~
glo.cpp:64:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (i = 0; i < n; i++) scanf("%d",&t[i]);
                             ~~~~~^~~~~~~~~~~~
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