Submission #1399812

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Source Code Expand

#include <cstdio>
#include <climits>
#include <algorithm>
using namespace std;

int sum(int x, int y){
  if(y <= 0) return (x + y) * (x - y - 1) / 2;
  if(x <= 0) return (y * y + y + x * x - x) / 2;
  return (x + y) * (y - x + 1) / 2;
}

int main(){
  int R, G, B; scanf("%d%d%d", &R, &G, &B);

  int ans = INT_MAX;

  int rs = -100 - R / 2, re = -100 - (R - 1) / 2;
  int gs = -G / 2, ge = -(G - 1) / 2;
  int bs = 100 - B / 2, be = 100 - (B - 1) / 2;

  gs = min(gs, be - G); ge = max(ge, rs + R);

  // printf("%d %d %d %d %d %d\n", rs, re, gs, ge, bs, be);

  for(int g = gs; g <= ge; g++){
    int r = min(g - R, rs), b = max(g + G, be);

    int rv = sum(r + 100, r + R + 99);
    int gv = sum(g, g + G - 1);
    int bv = sum(b - 100, b + B - 101);

    ans = min(ans, rv + gv + bv);
  }

  printf("%d\n", ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int R, G, B; scanf("%d%d%d", &R, &G, &B);
                                           ^

Judge Result