質問編集履歴
1
ごじら
test
CHANGED
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File without changes
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test
CHANGED
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@@ -124,9 +124,7 @@
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124
124
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125
125
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sum -= A[i];
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126
126
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127
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-
sum %
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127
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+
ans += (A[i] * sum) % (1000000000 + 7);
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128
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-
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129
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-
ans += A[i] * sum;
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130
128
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131
129
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ans %= (1000000000 + 7);
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132
130
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