Submission #577837

#	Time	Username	Problem	Language	Result	Execution time	Memory
577837		patrikpavic2	Uplifting Excursion (BOI22_vault)	C++17	0 / 100	4 ms	364 KiB

vault

#include <cstdio>
#include <algorithm>

using namespace std;

typedef long long ll;

const int M = 102;
const int GR = M * M;
const int INF = 0x3f3f3f3f;

int m;
ll L, A[M], kol;
int dp[2 * GR];
int cnt[30];

int main(){
    scanf("%d%lld", &m, &L);
    for(int i = m;i >= 1;i--){
        ll x; scanf("%lld", &x);
      //  A[i] += x; L += x * i;
    }
    ll bla; scanf("%lld", &bla);
    for(int i = 1;i <= m;i++){
        ll x; scanf("%lld", &x);
        A[i] += x;
    }
    ll L2 = 0;
    for(int i = 1;i <= m;i++){
        ll uz = min(A[i], max(L - GR, 0LL) / i);
        ll trb = M / i;
        if(A[i] - uz >= trb){
            kol += uz; L -= uz * i;
            A[i] -= uz;
        }
        else{
            L -= uz * i; kol += A[i] - min(A[i], trb);
            L2 += ((ll)min(A[i], trb) - A[i] + uz) * i;
            A[i] = min(A[i], trb);
        }
        A[i] = min((ll)2 * GR / i, A[i]);
    }
    L += L2;
    for(int i = 1;i < 2 * GR;i++)
        dp[i] = -INF;
    for(int i = 1;i <= m;i++){
        for(int j = 0;j < 8;j++)
            cnt[j] = 0;
        cnt[0] = A[i];
        for(int j = 0;j < 8;j++){
            if(cnt[j] > 2){
                if(cnt[j] % 2){
                    cnt[j + 1] += (cnt[j] - 1) / 2;
                    cnt[j] = 1;
                }
                else{
                    cnt[j + 1] += (cnt[j] - 2) / 2;
                    cnt[j] = 2;
                }
            }
        }
        for(int j = 0;j < 8;j++){
            for(int b = 0;b < cnt[j];b++)
                for(int k = 2 * GR - 1;k >= i * (1 << j);k--)
                    dp[k] = max(dp[k], (1 << j) + dp[k - i * (1 << j)]);
        }
    }
    if(L >= 2 * GR || dp[L] < 0)
        printf("impossible\n");
    else
        printf("%lld\n", kol + dp[L] + bla);
    return 0;
}

Compilation message (stderr)

vault.cpp: In function 'int main()':
vault.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf("%d%lld", &m, &L);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
vault.cpp:20:20: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         ll x; scanf("%lld", &x);
      |               ~~~~~^~~~~~~~~~~~
vault.cpp:23:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     ll bla; scanf("%lld", &bla);
      |             ~~~~~^~~~~~~~~~~~~~
vault.cpp:25:20: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         ll x; scanf("%lld", &x);
      |               ~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3-1: 0 / 10
• Subtask 3-2: 0 / 10
• Subtask 4-1: 0 / 10
• Subtask 4-2: 0 / 10
• Subtask 5-1: 0 / 10
• Subtask 5-2: 0 / 10
• Subtask 6-1: 0 / 10
• Subtask 6-2: 0 / 10