oj.uz

Submission #63162

# Submission time Handle Problem Language Result Execution time Memory
63162 2018-08-01T01:33:55 Z khsoo01 Popeala (CEOI16_popeala) C++11
100 / 100
 926 ms 60120 KB 
#include<bits/stdc++.h>
#define X first
#define Y second
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
const ll N = 55, T = 20005, inf = 1e12;
 
ll n, t, s, p[T], a[N][T], dt[N][T], pre[T][N], nxt[N][T];
char ipt[T];
 
vector<pll> pot[T];
 
ll getv (ll S, ll E) {
	ll R = 0;
	for(int i=1;i<=n;i++) {
		if(a[i][E] - a[i][S-1] == E-S+1) R++;
	}
	return R;
}
 
int main()
{
	scanf("%lld%lld%lld",&n,&t,&s);
	for(int i=1;i<=t;i++) {
		scanf("%lld",&p[i]);
		p[i] += p[i-1];
	}
	for(int i=1;i<=n;i++) {
		scanf("%s",ipt+1);
		for(int j=1;j<=t;j++) {
			a[i][j] = (ipt[j] == '1');
			nxt[i][j] = (a[i][j] ? nxt[i][j-1] : j);
			a[i][j] += a[i][j-1];
		}
	}
	for(int i=1;i<=t;i++) {
		for(int j=1;j<=n;j++) {
			if(!nxt[j][i]) continue;
			pot[i].push_back({nxt[j][i]-1, getv(nxt[j][i], i)});
		}
		pot[i].push_back({i-1, getv(i, i)});
	}
	for(int i=1;i<=t;i++) {
		dt[1][i] = getv(1, i) * p[i];
	}
	for(int i=2;i<=s;i++) {
		for(int k=i-1;k<=t;k++) {
			for(int j=0;j<=n;j++) {
				pre[k][j] = dt[i-1][k] - j * p[k];
				if(k >= i) pre[k][j] = min(pre[k-1][j], pre[k][j]);
			}
		}
		for(int j=i;j<=t;j++) {
			dt[i][j] = inf;
			for(auto &T : pot[j]) {
				ll A, B;
				tie(A, B) = T;
				if(A < i-1) continue;
				dt[i][j] = min(dt[i][j], pre[A][B] + B * p[j]);
			}
		}
	}
	for(int i=1;i<=s;i++) {
		printf("%lld\n",dt[i][t]);
	}
}

Compilation message

popeala.cpp: In function 'int main()':
popeala.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%lld",&n,&t,&s);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
popeala.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&p[i]);
   ~~~~~^~~~~~~~~~~~~~
popeala.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",ipt+1);
   ~~~~~^~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 4 ms 1256 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 2836 KB Output is correct
2 Correct 18 ms 2852 KB Output is correct
3 Correct 20 ms 3000 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 7428 KB Output is correct
2 Correct 96 ms 9876 KB Output is correct
3 Correct 167 ms 12672 KB Output is correct

Subtask #4
74.0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 4 ms 1256 KB Output is correct
3 Correct 19 ms 2836 KB Output is correct
4 Correct 18 ms 2852 KB Output is correct
5 Correct 20 ms 3000 KB Output is correct
6 Correct 73 ms 7428 KB Output is correct
7 Correct 96 ms 9876 KB Output is correct
8 Correct 167 ms 12672 KB Output is correct
9 Correct 241 ms 19392 KB Output is correct
10 Correct 384 ms 25360 KB Output is correct
11 Correct 803 ms 54984 KB Output is correct
12 Correct 869 ms 56696 KB Output is correct
13 Correct 926 ms 58128 KB Output is correct
14 Correct 871 ms 59224 KB Output is correct
15 Correct 887 ms 60120 KB Output is correct