Submission #403561

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
403561	2021-05-13 09:32:17	tqbfjotld	조개 줍기 (KOI17_shell)	C++14	12 / 100	296 ms	39284 KiB

shell

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#include <bits/stdc++.h>
using namespace std;
#define int long long
int vals[1505][1505];
int val2[1505][1505];
int num[1505][1505];
set<pair<int,int> > vis;
int curans = 0;
int n;
void decr(int x, int y){
    int t=vis.size();
    vis.insert({x,y});
    if (vis.size()==t) return;
    val2[x][y]--;
    curans --;
    if (x!=n){
        if (vals[x+1][y]+max(val2[x][y],y!=1?val2[x+1][y-1]:0)<val2[x+1][y]){
            decr(x+1,y);
        }
    }
    if (y!=n){
        if (vals[x][y+1]+max(val2[x][y],x!=1?val2[x-1][y+1]:0)<val2[x][y+1]){
            decr(x,y+1);
        }
    }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shell.cpp: In function 'void decr(long long int, long long int)':
shell.cpp:16:19: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   16 |     if (vis.size()==t) return;
      |         ~~~~~~~~~~^~~
shell.cpp: At global scope:
shell.cpp:31:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   31 | main(){
      | ^~~~
shell.cpp: In function 'int main()':
shell.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
shell.cpp:36:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |                 scanf("%lld",&vals[x][y]);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~
shell.cpp:63:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |             scanf(" %c%lld%lld",&c,&a,&b);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
shell.cpp:97:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |             scanf("%lld",&vals[x][y]);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~
shell.cpp:120:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  120 |         scanf(" %c%lld%lld",&c,&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 34
• Subtask 3: 0 / 54