Submission #99662

#TimeUsernameProblemLanguageResultExecution timeMemory
99662kjp4155Bitaro the Brave (JOI19_ho_t1)C++17
100 / 100
396 ms152668 KiB
#include <bits/stdc++.h> using namespace std; #define VA_NUM_ARGS(...) VA_NUM_ARGS_IMPL_((0,__VA_ARGS__, 6,5,4,3,2,1)) #define VA_NUM_ARGS_IMPL_(tuple) VA_NUM_ARGS_IMPL tuple #define VA_NUM_ARGS_IMPL(_0,_1,_2,_3,_4,_5,_6,N,...) N #define macro_dispatcher(macro, ...) macro_dispatcher_(macro, VA_NUM_ARGS(__VA_ARGS__)) #define macro_dispatcher_(macro, nargs) macro_dispatcher__(macro, nargs) #define macro_dispatcher__(macro, nargs) macro_dispatcher___(macro, nargs) #define macro_dispatcher___(macro, nargs) macro ## nargs #define Debug1(a) cout<<#a<<"="<<(a)<<"\n" #define Debug2(a,b) cout<<#a<<"="<<(a)<<", "<<#b<<"="<<(b)<<"\n" #define Debug3(a,b,c) cout<<#a<<"="<<(a)<<", "<<#b<<"="<<(b)<<", "<<#c<<"="<<(c)<<"\n" #define Debug4(a,b,c,d) cout<<#a<<"="<<(a)<<", "<<#b<<"="<<(b)<<", "<<#c<<"="<<(c)<<", "<<#d<<"="<<(d)<<"\n" #define Debug5(a,b,c,d,e) cout<<#a<<"="<<(a)<<", "<<#b<<"="<<(b)<<", "<<#c<<"="<<(c)<<", "<<#d<<"="<<(d)<<", "<<#e<<"="<<(e)<<"\n" #define Debug6(a,b,c,d,e,f) cout<<#a<<"="<<(a)<<", "<<#b<<"="<<(b)<<", "<<#c<<"="<<(c)<<", "<<#d<<"="<<(d)<<", "<<#e<<"="<<(e)<<", "<<#f<<"="<<(f)<<"\n" #define Debug(...) macro_dispatcher(Debug, __VA_ARGS__)(__VA_ARGS__) #define DA(a,s,n) cout<<#a<<"=["; printarray(a,s,n); cout<<"]\n" #define TT1 template<class T> #define TT1T2 template<class T1, class T2> #define TT1T2T3 template<class T1, class T2, class T3> template<class T, size_t N> ostream& operator << (ostream& os, const array<T, N>& v); TT1T2 ostream& operator << (ostream& os, const pair<T1, T2>& p){ return os <<"("<<p.first<<", "<< p.second<<")"; } TT1 ostream& operator << (ostream& os, const vector<T>& v){ bool f=1;os<<"[";for(auto& i : v) { if (!f)os << ", ";os<<i;f=0;}return os << "]"; } template<class T, size_t N> ostream& operator << (ostream& os, const array<T, N>& v) { bool f=1;os<<"[";for(auto& i : v) { if (!f)os << ", ";os<<i;f=0;}return os << "]"; } TT1T2 ostream& operator << (ostream& os, const set<T1, T2>&v){ bool f=1;os<<"[";for(auto& i : v) { if (!f)os << ", ";os<<i;f=0;}return os << "]"; } TT1T2 ostream& operator << (ostream& os, const multiset<T1,T2>&v){bool f=1;os<<"[";for(auto& i : v) { if (!f)os << ", ";os<<i;f=0;}return os << "]"; } TT1T2T3 ostream& operator << (ostream& os, const map<T1,T2,T3>& v){ bool f = 1; os << "["; for (auto& ii : v) { if (!f)os << ", "; os << "(" << ii.first << " -> " << ii.second << ") "; f = 0; }return os << "]"; } TT1T2 ostream& operator << (ostream& os, const multimap<T1, T2>& v){ bool f = 1; os << "["; for (auto& ii : v) { if (!f)os << ", "; os << "(" << ii.first << " -> " << ii.second << ") "; f = 0; }return os << "]"; } TT1T2 ostream& operator << (ostream& os, priority_queue<T1, T2> v) { bool f = 1; os << "["; while (!v.empty()) { auto x = v.top(); v.pop(); if (!f) os << ", "; f = 0; os << x; } return os << "]"; } TT1T2 void printarray(const T1& a, T2 l, T2 r){ for (T2 i = l; i<=r; i++) cout << a[i] << (i<r?" ":""); } void cio(){ ios::sync_with_stdio(false); cin.tie(NULL); //cout << setprecision(15); } #define tt() printf("%.4f sec\n", (double) clock() / CLOCKS_PER_SEC ) typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define Fi first #define Se second #define pb(x) push_back(x) #define sz(x) (int)x.size() #define rep(i, n) for(int i=0;i<n;i++) #define repp(i, n) for(int i=1;i<=n;i++) #define all(x) x.begin(), x.end() #define geti1(X) cin >> X #define geti2(X,Y) cin >> X >> Y #define geti3(X,Y,Z) cin >> X >> Y >> Z #define geti4(X,Y,Z,W) cin >> X >> Y >> Z >> W #define GET_MACRO(_1,_2,_3,_4,NAME,...) NAME #define geti(...) GET_MACRO(__VA_ARGS__, geti4, geti3, geti2, geti1) (__VA_ARGS__) #define endl '\n' typedef tuple<int,int,int> t3; typedef tuple<int,int,int,int> t4; void die(){printf("-1\n"); exit(0);} int xx[8] = {1,-1,0,0,1,1,-1,-1}, yy[8] = {0,0,1,-1,1,-1,1,-1}; const ll mod = 1e9+7; int N,M; char s[3050][3050]; ll S1[3050][3050], S2[3050][3050]; int main(){ scanf("%d%d",&N,&M); repp(i,N) scanf("%s",s[i]+1); for(int i=1;i<=N;i++){ ll cnt = 0; for(int j=M;j>=1;j--){ if( s[i][j] == 'J' ) S1[i][j] = cnt; if( s[i][j] == 'O' ) cnt++; } } for(int j=1;j<=M;j++){ ll cnt = 0; for(int i=N;i>=1;i--){ if( s[i][j] == 'J' ) S2[i][j] = cnt; if( s[i][j] == 'I' ) cnt++; } } ll ans = 0; repp(i,N) repp(j,M) ans += S1[i][j] * S2[i][j]; printf("%lld\n",ans); }

Compilation message (stderr)

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:75:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&N,&M);
     ~~~~~^~~~~~~~~~~~~~
joi2019_ho_t1.cpp:76:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     repp(i,N) scanf("%s",s[i]+1);
               ~~~~~^~~~~~~~~~~~~
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