| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 915553 |
2024-01-24T06:58:59 Z |
vjudge1 |
Bomb (IZhO17_bomb) |
C++17 |
|
1000 ms |
1884 KB |
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <iostream>
#include <vector>
#define pb push_back
#define str string
using namespace std;
int pp[501][501];
int u[501][501];
void solve(){
int n,m;
cin>>n>>m;
if(n==1){
str s;
cin>>s;
vector<int >v;
int k=0;
for(int i=0;i<m;i++){
if(s[i]=='1')k++;
else{
if(k>0){
v.pb(k);
k=0;
}
}
}
if(k>0){
v.pb(k);
}
int ans=1;
if(v.size()==0){
cout<<0;
return;
}
for(int i=2;i<=m;i++){
k=1;
for(int j=0;j<(int)v.size();j++){
if(v[j]<i){
k=0;
break;
}
}
if(k==1){
ans=i;
}
}
cout<<ans;
}
else if(m==1){
char s;
vector<int >v;
int k=0;
for(int i=0;i<n;i++){
cin>>s;
if(s=='1')k++;
else{
if(k>0){
v.pb(k);
k=0;
}
}
}
if(k>0){
v.pb(k);
}
int ans=1;
if(v.size()==0){
cout<<0;
return;
}
for(int i=2;i<=n;i++){
k=1;
for(int j=0;j<(int)v.size();j++){
if(v[j]<i){
k=0;
break;
}
}
if(k==1){
ans=i;
}
}
cout<<ans;
}
else if(n<=300 && m<=300){
str s[n+3];
int a[n+3][m+3];
int o=0;
for(int i=1;i<=n;i++){
cin>>s[i];
for(int j=0;j<m;j++){
a[i][j+1]=s[i][j]-'0';
o+=(a[i][j]==1);
pp[i][j+1]=a[i][j+1]+pp[i][j]+pp[i-1][j+1]-pp[i-1][j];
}
}
if(o==0){
cout<<0;
return;
}
int ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(i*j<=ans){
continue;
}
for(int i1=1;i1<=n;i1++){
for(int j1=1;j1<=m;j1++){
u[i1][j1]=0;
}
}
for(int i1=1;i1<=n;i1++){
for(int j1=1;j1<=m;j1++){
if(i1+i-1>n || j1+j-1>m)continue;
if(pp[i1+i-1][j1+j-1]+pp[i1-1][j1-1]-pp[i1+i-1][j1-1]-pp[i1-1][j1+j-1]==i*j){
for(int i2=i1;i2<=i1+i-1;i2++){
for(int j2=j1;j2<=j1+j-1;j2++){
u[i2][j2]=1;
}
}
}
}
}
int k=1;
for(int i1=1;i1<=n;i1++){
for(int j1=1;j1<=m;j1++){
if(u[i1][j1]!=a[i1][j1]){
k=0;
break;
}
}
}
if(k==1){
/*cout<<i<<" "<<j<<"\n";
for(int i1=1;i1<=n;i1++){
for(int j1=1;j1<=m;j1++){
cout<<u[i1][j1];
}
cout<<"\n";
}//*/
ans=max(ans,i*j);
}
}
}
cout<<ans;
}
else {
cout<<n*m;
}
}
signed main(){
ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
//srand( time(0));
//rand()
//freopen("sum.in", "r", stdin);
//freopen("sum.out", "w", stdout);
int tests=1;
//cin>>tests;
for(int i=1;i<=tests;i++){
//cout<<"TEST CASE : "<<i<<"\n";
solve();
}
}
Compilation message
bomb.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
3 | #pragma GCC optimization("unroll-loops")
|
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
472 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
544 KB |
Output is correct |
| 9 |
Correct |
1 ms |
600 KB |
Output is correct |
| 10 |
Correct |
1 ms |
600 KB |
Output is correct |
| 11 |
Correct |
1 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
588 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
15 ms |
756 KB |
Output is correct |
| 18 |
Correct |
17 ms |
772 KB |
Output is correct |
| 19 |
Correct |
47 ms |
860 KB |
Output is correct |
| 20 |
Correct |
50 ms |
860 KB |
Output is correct |
| 21 |
Correct |
20 ms |
604 KB |
Output is correct |
| 22 |
Correct |
41 ms |
600 KB |
Output is correct |
| 23 |
Correct |
80 ms |
860 KB |
Output is correct |
| 24 |
Correct |
33 ms |
600 KB |
Output is correct |
| 25 |
Correct |
112 ms |
896 KB |
Output is correct |
| 26 |
Execution timed out |
1047 ms |
1112 KB |
Time limit exceeded |
| 27 |
Execution timed out |
1052 ms |
1884 KB |
Time limit exceeded |
| 28 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 29 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 30 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 31 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 32 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 33 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 34 |
Incorrect |
0 ms |
480 KB |
Output isn't correct |
| 35 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 36 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 37 |
Correct |
1 ms |
348 KB |
Output is correct |
| 38 |
Correct |
1 ms |
348 KB |
Output is correct |
| 39 |
Correct |
1 ms |
348 KB |
Output is correct |
| 40 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 41 |
Correct |
1 ms |
344 KB |
Output is correct |
| 42 |
Correct |
220 ms |
900 KB |
Output is correct |
| 43 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 44 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 45 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 46 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 47 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 48 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 49 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 50 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 51 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 52 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 53 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 54 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
| 55 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 56 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 57 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 58 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 59 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 60 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 61 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 62 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 63 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 64 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 65 |
Incorrect |
0 ms |
476 KB |
Output isn't correct |
| 66 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 67 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 68 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 69 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 70 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 71 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 72 |
Incorrect |
0 ms |
476 KB |
Output isn't correct |
| 73 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 74 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 75 |
Incorrect |
0 ms |
420 KB |
Output isn't correct |
| 76 |
Incorrect |
0 ms |
600 KB |
Output isn't correct |
| 77 |
Incorrect |
0 ms |
356 KB |
Output isn't correct |
| 78 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 79 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 80 |
Incorrect |
1 ms |
600 KB |
Output isn't correct |
| 81 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 82 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 83 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 84 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 85 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 86 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 87 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 88 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 89 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 90 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 91 |
Incorrect |
0 ms |
600 KB |
Output isn't correct |
| 92 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 93 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 94 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 95 |
Incorrect |
0 ms |
472 KB |
Output isn't correct |
| 96 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 97 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 98 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 99 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 100 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
