Submission #1056475

#TimeUsernameProblemLanguageResultExecution timeMemory
1056475YourEternalRewardBank (IZhO14_bank)C++14
100 / 100
101 ms17032 KiB
/* .;;;;: :::::::; ;::::::; :;;;;. ;:::; ;:::::;; ;;; ::::::::::;; ;::: ;:::::::::::;;: .;;::: .;::::::::::::::;;. .:.:::: ;;;:::;;; :;:::::::::::::::::;;. :. .::::....: :;;::::::::; ;::::::::::....:::::::;;;;;;;;;;: .:... ....:..: .;;::::::::::::; :;::::::::........::::::::::::::. :. .. ... . .....;;;:::::::::::::::; ;::::::::..........::::::::::::: .... ..... .....:::::::::::::::::;: .;:::::::...........:::::::::::: :.. ... ...........:::::::::::::::;. ......................::::::::::: .. .... ..............:::::::::::; ..........:::.......:::::::::::::. . .. .... ............:::::::::; ..........::::::::::::::::.......: .:.... ... ........ .: ::::::;; ........:::::::::::::...........:. ::. .... .... .... .: .::::;: .......:::::::::::::..............::. .::.. .. .... .:..:::;: ...::::::::::::::::..:::....::....::::. :.... .... .... : ::. ;::::::::::::::::::..::.....:::...::::::::. .:. ... ..... .. . :;::::::::;; .;:::::............::::::::::: :.... ... .. :.: ;:::::::;. ;;:::.......:::::;;;;..;;;::. :.... .... ...: ;:::::;: .;;::::::;;;;. ;;:... .. .. .:. . ;:::::: :;;: .;:: ....... .:. : ;::::; ;. ;;:: :::.. .:;: ;;::;: :;;;;;; .;::::::::::::; ;::;: .;;;;;;; :;:::::::::::: .;:;: .::;;;;; .;::::::::::;. .;;;.....;;;;;; ... .;:::::::::;. ;;:.... .:. ;;;;;; :;::::::::;. :;:......... ..... ;:::::::;: ............. .. ...... :;:::::;: ................... .;;;. .:;. ;;:::;;: .. ....... ..:;;:;; ;: :;::;;: ;.:::.. ..........:;;;;; .;...:.;;;;;. . :;:;.................;.;:; ;::::::::: ;;;::: .;....:........;; ;;:::; .:::::;;:::;.:::. .;::::::: .:...:; ;..:.:.:::.:;;;:::. :;:: : ..:.:. .;::::: ::.........;;+:....:; .:..:: .::..; ;::;:;;: ;:...........::;;;;;: .:: .; ::..:. :. ;:::;. :. ::::::...;. :::: ..;;;. ;. ;;:::;. .. ::.;:.;: .::;;; ;;;:::;;. ::.; :;;;;:::........; ;:::;: .;...::::........;:.....:; ;: */ #include<bits/stdc++.h> #define ll long long #define ld long double #define endl '\n' #define rep(i,a,b) for(int i=a; i<=b; ++i) #define rev(i,b,a) for(int i=b; i>=a; --i) #define pii pair<ll,ll> #define getbit(x,i) (x & (1ll<<i)) #define isz(v) (int)(v).size() #define ALL(v) (v).begin(), (v).end() using namespace std; const int maxN = 1e5 + 7; const ll inf = 1e9 + 7; const ll mod = (1ll<<31) - 1; const ll moreinf = 1e16 + 7; const int AT = 2000; const int BASE = 31; const ld pi = acos(-1); const ld eps = 1e-9; int n,m; ll p[21],b[21]; pii f[1<<21]; int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m; rep(i,1,n) cin >> p[i]; rep(i,1,m) cin >> b[i]; rep(i,1,(1<<n)-1) f[i] = {-1,-1}; f[0] = {0,0}; rep(mask,0,(1<<m)-1){ rep(i,0,m-1){ if(getbit(mask,i) || f[mask].first == -1) continue; int submask = mask ^ (1<<i); pii t = f[mask]; t.second += b[i+1]; if(t.second == p[t.first+1]){ t.first++; t.second = 0; } f[submask] = max(f[submask],t); } if(f[mask].first==n){ cout << "YES"; return 0; } } cout << "NO"; return 0; }
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