제출 #122706

#제출 시각아이디문제언어결과실행 시간메모리
122706win11905Two Antennas (JOI19_antennas)C++11
2 / 100
3055 ms376 KiB
#include <bits/stdc++.h> using namespace std; const int N = 305; int n, m; int h[N], x[N], y[N]; int main() { scanf("%d", &n); for(int i = 1; i <= n; ++i) scanf("%d %d %d", h+i, x+i, y+i); scanf("%d", &m); while(m--) { int l, r; scanf("%d %d", &l, &r); int mx = -1; for(int i = l; i <= r; ++i) { for(int j = i+1; j <= r; ++j) if((x[i] <= j-i && j-i <= y[i]) && (x[j] <= j-i && j-i <= y[j])) mx = max(mx, abs(h[i] - h[j])); } printf("%d\n", mx); } }

컴파일 시 표준 에러 (stderr) 메시지

antennas.cpp: In function 'int main()':
antennas.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
antennas.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", h+i, x+i, y+i);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &m);
     ~~~~~^~~~~~~~~~
antennas.cpp:15:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int l, r; scanf("%d %d", &l, &r);
                   ~~~~~^~~~~~~~~~~~~~~~~
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