Submission #29132

#	Time	Username	Problem	Language	Result	Execution time	Memory
29132		jjwdi0	Play Onwards (FXCUP2_onward)	C++11	1 / 1	29 ms	2184 KiB

onward

#include <bits/stdc++.h>
using namespace std;

int N, K, D[22][22];
char A[202][22];
int adj[202][202], num[202];
bool chk;

void add_edge(int x, int y) {
    memset(D, 0, sizeof(D));
    int alen = strlen(A[x]), blen = strlen(A[y]);
    int res = 0;
    for(int i=0; i<alen; i++) for(int j=0; j<blen; j++) {
        if(A[x][i] != A[y][j]) D[i][j] = 0;
        else if(i == 0 || j == 0) D[i][j] = 1;
        else D[i][j] = D[i-1][j-1] + 1;
        res = max(res, D[i][j]);
    }
    if(res >= K) adj[x][y] = adj[y][x] = 1;
    // printf("%d %d : %d\n", x, y, res);
}

void dfs(int x, int y) {
    // printf("%d %d\n", x, y);
    num[x] = y;
    for(int i=1; i<=N; i++) {
        if(!adj[x][i]) continue;
        if(num[i] == num[x]) chk = 1;
        else if(!num[i]) dfs(i, 3 - y);
    }
}

int main() {
    scanf("%d %d", &N, &K);
    for(int i=1; i<=N; i++) scanf("%s", A[i]);
    for(int i=1; i<=N; i++) for(int j=i+1; j<=N; j++) add_edge(i, j);
    int pre = 2;
    for(int i=1; i<=N; i++) if(!num[i]) dfs(i, 3 - pre), pre = 3 - pre;
    if(chk) return puts("No"),0;
    puts("Yes");
    for(int i=1; i<=N; i++) printf("%d\n", num[i]);
}

Compilation message (stderr)

onward.cpp: In function 'int main()':
onward.cpp:34:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &N, &K);
                           ^
onward.cpp:35:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1; i<=N; i++) scanf("%s", A[i]);
                                              ^

• Subtask 1: 1 / 1