Submission #502263

#	Time	Username	Problem	Language	Result	Execution time	Memory
502263		vrohak	Xylophone (JOI18_xylophone)	C++14	Compilation error	0 ms	0 KiB

xylophone

#include "xylophone.h"
 
void solve(int N) {
	int A[N];
	A[0] = 0;
	int D[N - 1];
	int T[N - 2];
	for(int i = 1; i < N; i++) {
		D[i - 1] = query(i, i + 1);
	}
	for(int i = 2; i < N; i++) {
		T[i - 2] = query(i - 1, i + 1);
	}
	A[1] = D[0];
	bool up = true;
	for(int i = 2; i < N; i++) {
		if(D[i - 2] + D[i - 1] != T[i - 2]) {
			up = !up;
		}
		A[i] = A[i - 1] + D[i - 1] * ((int)up * 2 - 1);
	}
    int rj1[n+1], rj2[n+1];
	int mx = 0, mn = 0;
	int idx1 = 0, idx2 = 0;
	for(int i = 1; i < N; i++) {
		mn = min(mn, A[i]);
	}
  	mn = (-1)*mn+1;
  	for(int i=0;i<N;i++){
      rj1[i] = A[i]+mn;
      rj2[i] = -A[i];
    }
  	mn=0;
    for(int i = 1; i < N; i++) {
		mn = min(mn, rj2[i]);
	}
  	mn = (-1)*mn+1;
  	for(int i=0;i<N;i++) rj2[i]+=mn;
  	for(int i=0;i<N;i++){
      if(rj1[i] == 1) idx1 = i;
      if(rj1[i] == n) idx2 = i;
    }
	if(idx1 < idx2) {
		for(int i = 0; i < N; i++) {
			answer(i + 1, rj1[i]);
		}
	} else {
		for(int i = 0; i < N; i++) {
			answer(i + 1, rj2[i]);
		}
	}
	
	return;
}

Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:22:13: error: 'n' was not declared in this scope
   22 |     int rj1[n+1], rj2[n+1];
      |             ^
xylophone.cpp:26:8: error: 'min' was not declared in this scope; did you mean 'mn'?
   26 |   mn = min(mn, A[i]);
      |        ^~~
      |        mn
xylophone.cpp:30:7: error: 'rj1' was not declared in this scope
   30 |       rj1[i] = A[i]+mn;
      |       ^~~
xylophone.cpp:31:7: error: 'rj2' was not declared in this scope
   31 |       rj2[i] = -A[i];
      |       ^~~
xylophone.cpp:35:16: error: 'rj2' was not declared in this scope
   35 |   mn = min(mn, rj2[i]);
      |                ^~~
xylophone.cpp:35:8: error: 'min' was not declared in this scope; did you mean 'mn'?
   35 |   mn = min(mn, rj2[i]);
      |        ^~~
      |        mn
xylophone.cpp:38:25: error: 'rj2' was not declared in this scope
   38 |    for(int i=0;i<N;i++) rj2[i]+=mn;
      |                         ^~~
xylophone.cpp:40:10: error: 'rj1' was not declared in this scope
   40 |       if(rj1[i] == 1) idx1 = i;
      |          ^~~
xylophone.cpp:41:10: error: 'rj1' was not declared in this scope
   41 |       if(rj1[i] == n) idx2 = i;
      |          ^~~
xylophone.cpp:45:18: error: 'rj1' was not declared in this scope
   45 |    answer(i + 1, rj1[i]);
      |                  ^~~
xylophone.cpp:49:18: error: 'rj2' was not declared in this scope
   49 |    answer(i + 1, rj2[i]);
      |                  ^~~
xylophone.cpp:23:6: warning: unused variable 'mx' [-Wunused-variable]
   23 |  int mx = 0, mn = 0;
      |      ^~