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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#623902 | #7995. 图 | JYYMVP | Compile Error | / | / | C++14 | 1021b | 2024-10-09 14:20:33 | 2024-10-09 14:20:47 |
Judging History
answer
#include <unordered_map>
#include <unordered_set>
#define ll long long
#define abs(a) (a > 0 ? (a) : -(a))
static ll max(ll a, ll b) { return a > b ? a : b; }
static ll min(ll a, ll b) { return a < b ? a : b; }
using namespace std;
const int N = 1e5 + 9;
int f[509][509];
int g[509][509];
int main() {
int n;
cin >> n;
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= n; ++j) {
cin >> f[i][j];
g[i][j] = f[i][j];
}
}
for (int k = 1; k <= n; k++) {
for (int x = 1; x <= n; x++) {
for (int y = 1; y <= n; y++) {
f[x][y] = min(f[x][y], f[x][k] + f[k][y]);
}
}
}
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= n; ++j) {
if (i == j) cout << "0";
else {
if (f[i][j] == g[i][j]) cout << "1";
else cout << "0";
}
}
cout << endl;
}
return 0;
}
Details
answer.code: In function ‘int main()’: answer.code:18:5: error: ‘cin’ was not declared in this scope 18 | cin >> n; | ^~~ answer.code:3:1: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? 2 | #include <unordered_set> +++ |+#include <iostream> 3 | #define ll long long answer.code:37:25: error: ‘cout’ was not declared in this scope 37 | if (i == j) cout << "0"; | ^~~~ answer.code:37:25: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? answer.code:39:41: error: ‘cout’ was not declared in this scope 39 | if (f[i][j] == g[i][j]) cout << "1"; | ^~~~ answer.code:39:41: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? answer.code:40:22: error: ‘cout’ was not declared in this scope 40 | else cout << "0"; | ^~~~ answer.code:40:22: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? answer.code:43:9: error: ‘cout’ was not declared in this scope 43 | cout << endl; | ^~~~ answer.code:43:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? answer.code:43:17: error: ‘endl’ was not declared in this scope 43 | cout << endl; | ^~~~ answer.code:3:1: note: ‘std::endl’ is defined in header ‘<ostream>’; did you forget to ‘#include <ostream>’? 2 | #include <unordered_set> +++ |+#include <ostream> 3 | #define ll long long