Submission #46867821

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
//#define int long long
inline int read(){int x=0,f=1;char ch=getchar(); while(ch<'0'||
ch>'9'){if(ch=='-')f=-1;ch=getchar();}while(ch>='0'&&ch<='9'){
x=(x<<1)+(x<<3)+(ch^48);ch=getchar();}return x*f;}
#define Z(x) (x)*(x)
#define pb push_back
//mt19937 rand(time(0));
//mt19937_64 rand(time(0));
//srand(time(0));
#define N 310
//#define M
//#define mo
void Mx(int &a, int b) {
	a = max(a, b); 
}
int n, m, i, j, k, T;
int f[N][N], dp[N], l, r, len; 
char s[N]; 

signed main()
{
//	freopen("in.txt", "r", stdin);
//	freopen("out.txt", "w", stdout);
//	T=read();
//	while(T--) {
//
//	}
	memset(f, 0xfc, sizeof(f)); 
	scanf("%s", s+1); m=read(); n=strlen(s+1); 
	for(i=0; i<=n+1; ++i) f[i+1][i]=0; 
	for(len=2; len<=n; ++len)
		for(l=1, r=len; r<=n; ++l, ++r) {
			if(f[l][r-1]>0) f[l][r]=f[l][r-1]-1; 
			for(k=l; k<r; ++k) {
				Mx(f[l][r], f[l][k]+f[k+1][r]); 
			}
			if(s[l]=='o' && s[r]=='f' && f[l+1][r-1]>=0) Mx(f[l][r], m); 
//			printf("f[%d %d] : %d \n", l, r, f[l][r]); 
		}
	dp[0] = 0; 
	for(i=1; i<=n; ++i) {
		dp[i] = dp[i-1] + 1; 
		for(j=0; j<i; ++j) 
			if(f[j+1][i] >= 0)
				dp[i] = min(dp[i], dp[j]); 
	}
	printf("%d", dp[n]); 
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:31:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   31 |         scanf("%s", s+1); m=read(); n=strlen(s+1);
      |         ~~~~~^~~~~~~~~~~

Judge Result