Submission #1697380

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
typedef pair<double,int>Q;
#define pu push
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define mod 1000000007
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define repn(i,x) for(int i=1;i<=x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())
char str[500005];
int q;
int dp[500005][27];
int go[500005][21];
int main(){
	scanf("%s%d",&str,&q); int n = strlen(str);
	rep(i,500005) rep(j,27) dp[i][j] = INF;
	for(int i=0;i<n;i++){
		dp[i][str[i]-'a'] = i;
	}
	while(1){
		bool upd = 0;
		for(int j=1;j<=26;j++){
			for(int i=0;i<n;i++){
				if(dp[i][j-1] < n && dp[dp[i][j-1]+1][j-1] < n && dp[i][j] > dp[dp[i][j-1]+1][j-1]){
					dp[i][j] = dp[dp[i][j-1]+1][j-1];
					upd = 1;
				}
				if(dp[i][26] < n && dp[dp[i][26]+1][j] < n && dp[i][j] > dp[dp[i][26]+1][j]){
					dp[i][j] = dp[dp[i][26]+1][j];
					upd = 1;
				}
			}
		}
		if(!upd) break;
	}
	for(int i=0;i<str.size();i++){
		go[i][0] = dp[i][26]+1;
		//cout<<i<<" "<<go[i][0]<<endl;
	}
	go[n][0] = n;
	for(int j=0;j<19;j++){
		for(int i=0;i<=n;i++){
			if(go[i][j] >= n) go[i][j+1] = INF;
			else go[i][j+1] = go[go[i][j]][j];
		}
	}
	//cout<<go[0][1]<<endl;
	rep(i,q){
		int x,y; scanf("%d%d",&x,&y); x--;
		for(int i=19;i>=0;i--){
			if(go[x][i] <= y) x = go[x][i];
		}
	//	cout<<x<<" "<<y<<endl;
		puts(x==y?"Yes":"No");
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[500005]’ [-Wformat=]
  scanf("%s%d",&str,&q); int n = strlen(str);
                      ^
./Main.cpp:48:20: error: request for member ‘size’ in ‘str’, which is of non-class type ‘char [500005]’
  for(int i=0;i<str.size();i++){
                    ^
./Main.cpp:27:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s%d",&str,&q); int n = strlen(str);
                       ^
./Main.cpp:61:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int x,y; scanf("%d%d",&x,&y); x--;
                               ^