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HuangHai 1f397eca87 'commit'
2025-08-30 18:35:01 +08:00

18 lines
405 B
C++

#include <bits/stdc++.h>
using namespace std;
int main() {
int a, b, s;
char c;
cin >> a >> b >> c >> s;
for (int i = 1; i <= a; i++) {
for (int j = 1; j <= b; j++) {
if (s)printf("%c", c);
else if (i==1 || i==a || j == 1 || j == b) printf("%c", c);
else printf("%c",' ');
}
printf("\n");
}
return 0;
}